Certified Clinical Transplant Coordinator (CCTC) — Questions and Answers

Question 1: An OPTN-required 'unexpected patient death within 30 days of transplant' is identified at your center. The death was unrelated to the transplant procedure itself — the recipient died of a stroke caused by a pre-existing AVM. Your program's quality committee determines no practice deviation occurred. What is the OPTN mandatory reporting obligation in this scenario?

Report is required only if the death falls within 72 hours of transplant, not at 30 days
The death must still be reported to OPTN as a Patient Safety Event within the required timeframe, even if determined to be unrelated to transplant (Correct answer)
The event is reportable only if the program's quality committee finds a deviation from standard of care
No OPTN report is required because causation has been ruled unrelated to the transplant procedure

Correct answer: The death must still be reported to OPTN as a Patient Safety Event within the required timeframe, even if determined to be unrelated to transplant

OPTN Policy requires member programs to report all patient deaths occurring within 30 days of transplant as Patient Safety Events, regardless of whether the death is causally related to the transplant. The OPTN's oversight function depends on complete data capture; programs cannot self-determine reportability based on their own causation analysis. Failure to report is itself a policy violation subject to MPSC review.

Question 2: Which post-transplant complication is specifically associated with Epstein-Barr virus (EBV) reactivation in solid organ recipients?

BK virus nephropathy
Post-transplant lymphoproliferative disorder (PTLD) (Correct answer)
Kaposi's sarcoma
CMV colitis

Correct answer: Post-transplant lymphoproliferative disorder (PTLD)

PTLD is a spectrum of lymphoid proliferations driven by EBV reactivation under immunosuppression, ranging from benign hyperplasia to aggressive lymphoma.

Question 3: A non-directed (altruistic) living donor is undergoing assessment. As part of the informed consent process, which of the following points is uniquely critical to discuss with this type of donor?

The fact that the transplant program will determine the recipient of the organ. (Correct answer)
The requirement for post-donation follow-up care at 6, 12, and 24 months.
The potential for post-operative pain and the plan for its management.
The possibility of surgical complications like infection or bleeding.

Correct answer: The fact that the transplant program will determine the recipient of the organ.

While all donors must be informed about surgical risks, follow-up care, and recovery, it is uniquely important for a non-directed donor to understand that they have no control over who receives their organ. The transplant center's allocation policies, based on factors like the recipient's medical urgency and compatibility, will determine the recipient. This lack of influence over the organ's destination is a key component of the consent process for altruistic donors.

Question 4: A bilateral renal CT angiogram in a living kidney donor candidate reveals left kidney volume of 118 mL and right kidney volume of 164 mL, with both kidneys having single renal arteries and no urologic anomalies. The candidate's overall GFR is 92 mL/min/1.73m². Which kidney should preferentially be procured, and what is the PRIMARY rationale?

The right kidney, because the right renal artery is longer and provides a safer anastomotic margin
The left kidney, because left nephrectomy is technically simpler laparoscopically regardless of volume differential
The left kidney, because the longer left renal vein facilitates the recipient anastomosis, and the smaller left kidney leaves the donor with the higher-functioning right kidney (Correct answer)
The right kidney, because its larger volume indicates higher individual function, leaving the donor with the lesser-functioning kidney to minimize their residual deficit

Correct answer: The left kidney, because the longer left renal vein facilitates the recipient anastomosis, and the smaller left kidney leaves the donor with the higher-functioning right kidney

Standard practice is to procure the left kidney when anatomy is otherwise comparable, because the left renal vein is substantially longer (~6–7 cm vs ~2–3 cm on the right), making the venous anastomosis technically easier and safer for the recipient. Removing the smaller left kidney also preserves the larger, higher-functioning right kidney in the donor, maximizing the donor's residual GFR. The right renal vein's short length makes right-sided procurement more technically demanding and is typically reserved for cases with anatomic indications.

Question 5: What is the primary role of an Organ Procurement Organization (OPO) in the transplantation process?

Managing recipient immunosuppression protocols
Performing transplant surgeries at recipient centers
Providing lifelong post-transplant follow-up care
Coordinating organ recovery, preservation, and allocation (Correct answer)

Correct answer: Coordinating organ recovery, preservation, and allocation

OPOs identify potential donors, coordinate consent, manage organ recovery and preservation, and facilitate allocation through UNOS/OPTN.

Question 6: In evaluating a candidate for kidney transplantation, which of the following findings is considered a relative contraindication that requires careful assessment and management rather than an absolute one?

Severe, irreversible cardiac disease
Metastatic lung cancer
Uncontrolled sepsis
Morbid obesity (BMI > 40 kg/m²) (Correct answer)

Correct answer: Morbid obesity (BMI > 40 kg/m²)

Morbid obesity is generally considered a relative contraindication to transplantation. While it increases surgical risk and can impact graft function, it may be managed through weight loss programs before transplant. In contrast, active infections like uncontrolled sepsis, active malignancies, and severe, uncorrectable cardiopulmonary disease are considered absolute contraindications because they pose an unacceptably high risk of mortality or immediate graft failure.

Question 7: A simultaneous liver-kidney transplant candidate presents with a MELD score of 34 and significant hepatic encephalopathy. During psychosocial evaluation, he intermittently cannot recall the names of his medications or his transplant surgeon, but accurately describes why he needs a transplant and agrees to proceed. His wife provides a reliable social support history. Which statement BEST characterizes the coordinator's assessment approach regarding consent capacity?

Hepatic encephalopathy is a categorical contraindication to self-consent; the evaluation should document this and proceed under surrogate authorization
Capacity assessment should focus on the patient's ability to understand the nature of transplant, appreciate consequences, reason about options, and communicate a consistent choice — not on factual recall per se (Correct answer)
The patient should be re-evaluated for capacity only after lactulose therapy is optimized and encephalopathy grades improve to Grade I
The patient lacks decision-making capacity because he cannot recall specific medication names, and surrogate consent should be pursued

Correct answer: Capacity assessment should focus on the patient's ability to understand the nature of transplant, appreciate consequences, reason about options, and communicate a consistent choice — not on factual recall per se

Legal and ethical standards for decision-making capacity (Appelbaum's four criteria) require understanding, appreciation, reasoning, and communication of a consistent choice — not flawless factual recall. Medication name recall is a memory task, not a capacity criterion. Hepatic encephalopathy is not a categorical bar to capacity; patients fluctuate, and capacity must be evaluated at the time of the decision. Re-evaluating after treatment may be clinically prudent but is not the standard that defines the assessment approach described.

Question 8: Which ethical principle most directly supports offering a transplant to an older candidate with lower expected graft survival over a younger candidate with higher expected survival?

Beneficence
Autonomy
Justice (Correct answer)
Non-maleficence

Correct answer: Justice

Justice demands fair access to transplantation regardless of age, balancing utility with equitable distribution.

Question 9: A prospective living liver donor (right lobe) has a BMI of 31 kg/m² and otherwise excellent health markers. CT volumetry reveals an estimated right lobe graft volume of 820 mL and a future liver remnant (FLR) of 29% of total liver volume. Which is the most appropriate course of action?

Recommend portal vein embolization (PVE) to increase FLR before reconsidering donation
Proceed with right lobe donation, as the graft volume is adequate for the recipient
Decline the donor, as an FLR below 30% carries unacceptable risk of post-hepatectomy liver failure (Correct answer)
Switch to left lobe procurement, which will automatically yield an adequate FLR

Correct answer: Decline the donor, as an FLR below 30% carries unacceptable risk of post-hepatectomy liver failure

The safety threshold for future liver remnant (FLR) in living liver donors is generally ≥30% of total liver volume, with most centers requiring ≥30–35%. An FLR of 29% falls below this critical threshold, placing the donor at significant risk of post-hepatectomy liver failure (PHLF), which carries high morbidity and mortality. PVE is used in oncologic hepatic resection to expand FLR preoperatively but is not an accepted standard approach in living donors due to the inherent risk to a healthy individual. Switching to the left lobe would not resolve the volumetric problem for the recipient and may still compromise the donor's remnant. Donor safety is paramount.

Question 10: A patient on the transplant waiting list is found to be non-compliant with follow-up appointments. Ethically, how should this factor into transplant candidacy decisions?

Non-compliance should automatically result in removal from the waiting list
Non-compliance is irrelevant because all listed candidates have equal rights to organs
Non-compliance should be assessed in context and used as one factor in the overall evaluation (Correct answer)
Only financial non-compliance should affect listing status

Correct answer: Non-compliance should be assessed in context and used as one factor in the overall evaluation

Non-compliance is a legitimate clinical concern affecting post-transplant outcomes, but must be assessed contextually and not used as a sole or punitive criterion.

Question 11: Which entity is responsible for certifying that an OPO is in compliance with federal performance standards?

UNOS MPSC
HRSA Division of Transplantation
State Department of Health
CMS through the OPO certification process (Correct answer)

Correct answer: CMS through the OPO certification process

CMS certifies OPOs and holds them to federal performance standards including donation rates; OPOs must be recertified every four years.

Question 12: A deceased donor's next-of-kin authorizes donation, but the medical examiner's office asserts jurisdiction over the case due to a suspicious manner of death. The coordinator determines organs are viable and time-sensitive. Which statement BEST describes the legal framework governing this conflict?

The next-of-kin authorization supersedes the medical examiner's jurisdiction in all federally designated OPO regions
The coordinator should proceed with procurement immediately to preserve organs before the medical examiner intervenes
Most states require the medical examiner's concurrence, but coordinators should use established protocols to negotiate organ-specific releases that preserve evidentiary integrity (Correct answer)
The medical examiner has absolute authority to deny donation, and the coordinator must comply without recourse

Correct answer: Most states require the medical examiner's concurrence, but coordinators should use established protocols to negotiate organ-specific releases that preserve evidentiary integrity

Medical examiners have statutory authority over cases within their jurisdiction, and most state laws require their concurrence before donation can proceed. However, established OPO protocols exist to negotiate with the medical examiner for organ-specific or tissue-specific releases that allow procurement while preserving evidentiary needs (e.g., forensic photos, tissue samples before organ removal). Proceeding without ME concurrence could constitute tampering with evidence. The ME's authority is not absolute in all states, but unilateral procurement is never appropriate.

Question 13: In liver transplantation, what does a MELD score of 40 indicate?

Approximately 71% 90-day mortality without transplantation (Correct answer)
Presence of hepatocellular carcinoma
Eligibility for living donor liver transplant only
Low medical urgency, patient can wait years

Correct answer: Approximately 71% 90-day mortality without transplantation

A MELD score of 40 correlates with approximately 71% mortality at 90 days without a transplant, indicating critical urgency for organ allocation.

Question 14: Which donor characteristic most significantly increases the risk of delayed graft function (DGF) in kidney transplantation?

ABO-compatible donor
Donor age under 30
Living related donor
Expanded criteria donor (ECD) or donation after cardiac death (DCD) (Correct answer)

Correct answer: Expanded criteria donor (ECD) or donation after cardiac death (DCD)

DCD and ECD kidneys have higher rates of DGF due to warm ischemia injury and donor comorbidities reducing organ quality.

Question 15: A DCD (donation after circulatory death) liver procurement is underway. The family withdraws support at 10:42 and asystole is declared at 11:09. Organ procurement begins at 11:14. The surgical team reaches cold flush at 11:21. Which time interval most accurately represents the 'functional warm ischemia time' (fWIT) by current consensus definition?

10:42 to 11:09 — from withdrawal of support to asystole
10:42 to 11:21 — from withdrawal of support to cold flush
11:09 to 11:21 — from asystole to cold flush (Correct answer)
11:09 to 11:14 — from asystole to start of procurement

Correct answer: 11:09 to 11:21 — from asystole to cold flush

Functional warm ischemia time (fWIT) in DCD donation is defined as the period from circulatory arrest (asystole/cardiac death declaration) to the initiation of cold perfusion (cold flush). In this case, that is 11:09 to 11:21 = 12 minutes. The period from withdrawal to asystole is the 'withdrawal-to-death interval.' The period from asystole to incision is part of the no-touch period. Current consensus (ASTS/ILT guidelines) anchors fWIT at the point of confirmed death, not withdrawal, because perfusion may persist partially until cardiac arrest.

Question 16: Which organ demonstrates the highest five-year graft survival rate in solid organ transplantation?

Kidney (Correct answer)
Lung
Liver
Intestine

Correct answer: Kidney

Kidney transplantation has the highest five-year graft survival rate among solid organs, exceeding 85% for living donor transplants.

Question 17: A kidney transplant recipient 8 years post-transplant is referred for evaluation of new hypertension that is refractory to three antihypertensive agents including a calcium channel blocker, an ACE inhibitor, and a thiazide diuretic. His tacrolimus trough is 6.2 ng/mL. Laboratory shows mild hypokalemia (3.2 mEq/L), metabolic alkalosis, and elevated aldosterone-to-renin ratio of 38 (normal <30). CT scan shows a 1.8 cm left adrenal adenoma. The transplant coordinator should flag this as:

Primary hyperaldosteronism; the appropriate next step is adrenal vein sampling to confirm lateralization, with laparoscopic adrenalectomy for confirmed unilateral disease — and the team must anticipate potential immunosuppression pharmacokinetic changes post-operatively (Correct answer)
Primary hyperaldosteronism (Conn's syndrome); the ACE inhibitor should be discontinued immediately as it is contraindicated in primary aldosteronism and may precipitate acute rejection
A calcineurin inhibitor-mediated pseudohyperaldosteronism; the findings are expected in long-term tacrolimus recipients and the adrenal adenoma is likely an incidental non-functioning adenoma
Primary hyperaldosteronism requiring AVS (adrenal vein sampling) to confirm lateralization before consideration of laparoscopic adrenalectomy, with appropriate pre-operative alpha-blockade

Correct answer: Primary hyperaldosteronism; the appropriate next step is adrenal vein sampling to confirm lateralization, with laparoscopic adrenalectomy for confirmed unilateral disease — and the team must anticipate potential immunosuppression pharmacokinetic changes post-operatively

Primary hyperaldosteronism (PA) is the most common cause of secondary hypertension and is underdiagnosed in transplant recipients. The ARR >30, hypokalemia, metabolic alkalosis, and adrenal adenoma are classic. AVS is required to confirm lateralization (CT misses ~40% of bilateral disease). Laparoscopic adrenalectomy is curative for unilateral disease. Critically, post-operative changes in cortisol, aldosterone, and fluid shifts can alter tacrolimus pharmacokinetics — the transplant team must plan for more frequent trough monitoring and potential dose adjustments. ACE inhibitors are not contraindicated in PA; they are less effective but safe. CNI-induced hypertension does not cause true hyperaldosteronism. Option C is incomplete because it omits the transplant-specific pharmacokinetic consideration.

Question 18: A heart transplant recipient at 7 years post-transplant is found to have diffuse concentric luminal narrowing on coronary angiography. This is most consistent with:

Cardiac allograft vasculopathy (Correct answer)
Calcineurin inhibitor-induced vasospasm
Hypertensive coronary remodeling
Atherosclerosis from pre-existing coronary disease

Correct answer: Cardiac allograft vasculopathy

Cardiac allograft vasculopathy (CAV) causes diffuse, concentric intimal hyperplasia affecting the entire coronary tree and is distinct from native atherosclerosis.

Question 19: A liver transplant recipient is diagnosed with BK virus-associated nephropathy (BKVAN) in their native kidneys 14 months post-transplant. Their current immunosuppression is tacrolimus, mycophenolate mofetil (MMF), and prednisone. Serum BK PCR is 85,000 copies/mL. Which is the MOST appropriate initial management strategy?

Initiate IV cidofovir at standard dosing with probenecid
Switch tacrolimus to cyclosporine and maintain MMF dose unchanged
Add leflunomide to the current regimen without changing other agents
Reduce or discontinue MMF and reduce tacrolimus trough target (Correct answer)

Correct answer: Reduce or discontinue MMF and reduce tacrolimus trough target

The cornerstone of BKVAN management is immunosuppression reduction, not antiviral therapy, since no antiviral has proven efficacy in controlled trials. The standard approach is to reduce MMF (the agent with greatest impact on BK replication) and lower tacrolimus trough targets. Cidofovir has nephrotoxicity that limits its use and lacks robust evidence for BKVAN. Switching to cyclosporine without adjusting MMF does not adequately reduce the immunosuppressive burden in the right direction. Leflunomide has been used off-label but adding it without reducing existing immunosuppression would increase rather than reduce the net state of immunosuppression initially.

Question 20: A patient discharged after a kidney transplant does not understand why they need frequent laboratory draws. What is the best rationale to provide?

Labs confirm that the immune system is fully suppressed
Labs are required only for research purposes
Lab work is only necessary if symptoms develop
Frequent monitoring detects rejection, drug toxicity, and infection early when intervention is most effective (Correct answer)

Correct answer: Frequent monitoring detects rejection, drug toxicity, and infection early when intervention is most effective

Routine laboratory surveillance enables early detection of rejection, immunosuppressant toxicity, and opportunistic infections before clinical deterioration.

Question 21: A 58-year-old patient with hepatocellular carcinoma (HCC) within Milan criteria has been on the liver transplant waitlist for 14 months. His most recent AFP is 320 ng/mL and imaging shows stable disease. Under current UNOS policy, which factor would trigger automatic removal from the waitlist?

Tumor progression outside Milan criteria confirmed on restaging imaging
AFP rising above 500 ng/mL on two consecutive measurements 3 months apart
AFP exceeding 1,000 ng/mL at any single measurement regardless of imaging (Correct answer)
Total tumor volume exceeding 115 cc regardless of individual lesion size

Correct answer: AFP exceeding 1,000 ng/mL at any single measurement regardless of imaging

Under UNOS/OPTN policy, an AFP level exceeding 1,000 ng/mL at any single measurement is grounds for automatic delisting from the liver transplant waitlist, regardless of what restaging imaging shows, because it signals a high likelihood of metastatic or aggressive disease that would result in poor post-transplant outcomes. Tumor progression outside Milan criteria on imaging is also grounds for delisting, but AFP >1,000 ng/mL alone triggers automatic removal without requiring imaging confirmation.

Question 22: What is the significance of the 'warm ischemia time' in donation after circulatory death (DCD) procurement compared to donation after brain death (DBD)?

Warm ischemia time is irrelevant in DCD procurement
DBD organs have longer warm ischemia times than DCD organs
Warm ischemia only affects heart procurement, not abdominal organs
DCD organs experience functional warm ischemia before cross-clamp, increasing susceptibility to ischemia-reperfusion injury (Correct answer)

Correct answer: DCD organs experience functional warm ischemia before cross-clamp, increasing susceptibility to ischemia-reperfusion injury

In DCD, organs are exposed to a period of functional warm ischemia (hypotension and hypoxia before asystole and cross-clamp) that does not occur in DBD, making DCD organs more vulnerable to ischemia-reperfusion injury.

Question 23: A transplant coordinator is educating a new kidney recipient about their medication regimen, which includes a calcineurin inhibitor like tacrolimus. The coordinator must emphasize the need to consistently avoid which of the following food items to prevent a significant drug-food interaction?

High-potassium foods like bananas and potatoes.
Caffeinated beverages like coffee and tea.
Dairy products like milk and cheese.
Grapefruit and grapefruit juice. (Correct answer)

Correct answer: Grapefruit and grapefruit juice.

Grapefruit and its juice contain furanocoumarins, which inhibit the CYP3A4 enzyme in the intestine. This enzyme is critical for metabolizing calcineurin inhibitors such as tacrolimus and cyclosporine. Inhibiting this enzyme can lead to dangerously high, toxic levels of the drug in the bloodstream. While potassium levels may need monitoring due to tacrolimus effects, and other foods may have minor interactions, the grapefruit interaction is a critical safety issue that must be a core component of patient education.

Question 24: Which of the following best describes the ethical rationale for the 'dead donor rule' in transplantation?

Procurement of vital organs must not cause the death of the donor (Correct answer)
Donors must be legally declared dead by a cardiologist before procurement
The rule ensures that only brain-dead donors can contribute organs
Organs harvested from living patients produce better outcomes than those from deceased donors

Correct answer: Procurement of vital organs must not cause the death of the donor

The dead donor rule prohibits causing or hastening death to obtain organs, preserving donor dignity and public trust in the transplant system.

Question 25: A heart transplant candidate with treatment-resistant major depressive disorder (MDD) is well-controlled on an MAOI and has been psychiatrically stable for 2 years. The transplant psychiatry consultant recommends listing. The psychosocial coordinator is aware that post-transplant immunosuppressants such as corticosteroids can exacerbate mood disorders. The coordinator's MOST appropriate action is to:

Recommend the patient switch from MAOI to an SSRI prior to listing to reduce drug interaction risk post-transplant
Recommend deferral because MDD is an absolute contraindication to heart transplantation
Accept the psychiatric consultant's recommendation without further coordination, as psychiatric decisions are outside the coordinator's scope
Incorporate a detailed post-transplant psychiatric monitoring and steroid-taper protocol into the care plan, ensuring cross-disciplinary communication between psychiatry, transplant medicine, and the patient (Correct answer)

Correct answer: Incorporate a detailed post-transplant psychiatric monitoring and steroid-taper protocol into the care plan, ensuring cross-disciplinary communication between psychiatry, transplant medicine, and the patient

Treatment-resistant MDD managed effectively is not an absolute contraindication. The coordinator's role at this juncture is to ensure proactive care coordination: building a post-transplant surveillance plan that addresses the known risk of corticosteroid-induced mood exacerbation, ensures psychiatric follow-up is embedded in the post-transplant protocol, and facilitates communication across disciplines. Recommending a medication switch is outside the coordinator's scope and potentially harmful. Passive acceptance of the consultant's note without integrating it into the care plan is a coordination failure.

Question 26: A transplant coordinator discovers that a living donor was transplanted 14 months ago and the 1-year living donor follow-up data were never submitted to the OPTN. The program now wishes to collect and submit the data retroactively. Which statement BEST describes the regulatory consequence and correct course of action?

The living donor must be re-consented before any follow-up data can be submitted retroactively to comply with HIPAA data-sharing provisions
CMS must be notified within 30 days of discovering the lapse, and the program must place the living donor case on the next MPSC agenda for review
The program is already in violation of OPTN Policy 18.1; the coordinator should submit the data immediately and the program's QAPI committee must document a corrective action to prevent recurrence (Correct answer)
Retroactive submission is accepted by OPTN with no penalty if submitted within 24 months of the transplant date; no further action is required

Correct answer: The program is already in violation of OPTN Policy 18.1; the coordinator should submit the data immediately and the program's QAPI committee must document a corrective action to prevent recurrence

OPTN Policy 18.1 requires transplant programs to collect and submit living donor follow-up data at defined intervals (6 months, 1 year, 2 years). Missing the 1-year submission constitutes a policy violation. The correct response is to submit the data as soon as possible and address the gap through the program's QAPI process with a documented corrective action plan. CMS notification is not a required step for this specific violation; OPTN/MPSC handles it. Re-consent is not required for submitting existing follow-up data to the OPTN registry.

Question 27: A liver transplant recipient at 6 weeks post-transplant calls reporting that she has not been taking her tacrolimus as prescribed because she believes the medication is causing her hair loss and prefers to manage her health 'naturally.' The transplant coordinator's MOST appropriate initial psychosocial intervention is to:

Arrange an emergency clinic visit without first attempting to understand the patient's perspective
Explore the patient's illness beliefs, address the specific concern about hair loss with evidence-based information, and assess barriers to adherence within a motivational interviewing framework (Correct answer)
Immediately alert the transplant physician and document potential non-compliance without engaging the patient further
Inform the patient that non-adherence constitutes grounds for removal from follow-up care

Correct answer: Explore the patient's illness beliefs, address the specific concern about hair loss with evidence-based information, and assess barriers to adherence within a motivational interviewing framework

Motivational interviewing and health belief exploration are foundational psychosocial interventions for post-transplant non-adherence. The patient's behavior is driven by a specific, addressable health belief (hair loss causation) and a preference for 'natural' health management. Engaging this belief with empathy and evidence—before escalating—is the appropriate first step. Immediate escalation without exploration misses the therapeutic window and may damage the therapeutic alliance.

Question 28: An OPTN-member transplant program receives a deceased donor organ offer. The donor's serology shows a reactive anti-HCV antibody but a negative HCV NAT result. The intended recipient is HCV-negative and has not provided consent for an increased infectious risk (IIR) organ. Under OPTN Policy, which action MUST the coordinator take?

Obtain emergent informed consent from the recipient for the IIR designation and, if obtained, accept the organ (Correct answer)
Accept the organ and proceed — HCV NAT negativity means the organ no longer carries IIR classification under the 2020 OPTN policy revision
Decline the organ, as transplanting an HCV Ab+/NAT- organ into an HCV-naive recipient without IIR consent violates OPTN Policy 18.1
Contact the OPTN Help Desk to request a variance allowing transplantation without IIR consent given the NAT-negative result

Correct answer: Obtain emergent informed consent from the recipient for the IIR designation and, if obtained, accept the organ

Under current OPTN policy, a donor with reactive anti-HCV antibody — regardless of NAT result — is classified as an increased infectious risk (IIR) donor. Transplantation of an IIR organ requires documented informed consent from the recipient prior to transplant. The coordinator must obtain that consent emergently. If the recipient declines, the organ must be refused. HCV NAT negativity does not remove the IIR classification, and no OPTN variance exists for bypassing consent requirements.

Question 29: When counseling a lung transplant recipient about exercise, what should the coordinator emphasize during the first three months post-transplant?

Exercise is contraindicated indefinitely after lung transplant
High-intensity competitive sports are encouraged to build lung capacity quickly
Gradually increase activity as tolerated under pulmonary rehab guidance, avoiding overexertion (Correct answer)
Complete bed rest is required for the first three months

Correct answer: Gradually increase activity as tolerated under pulmonary rehab guidance, avoiding overexertion

Pulmonary rehabilitation with gradual activity progression improves outcomes after lung transplant while preventing complications from overexertion.

Question 30: A candidate for kidney-pancreas transplant has Type 1 diabetes with a hemoglobin A1c of 11.2%. What does this finding suggest about transplant candidacy?

Poor glycemic control may indicate need for optimization and assessment of end-organ complications (Correct answer)
The patient should receive pancreas transplant alone first
The patient is an ideal candidate due to severe diabetes
A1c level has no relevance to transplant eligibility

Correct answer: Poor glycemic control may indicate need for optimization and assessment of end-organ complications

Markedly elevated A1c suggests poor glycemic control and prompts further evaluation of diabetes-related complications that affect surgical risk and outcomes.

Question 31: A kidney transplant recipient on tacrolimus, mycophenolate mofetil, and prednisone presents 14 months post-transplant with a serum creatinine rise from 1.2 to 2.1 mg/dL, new-onset hypertension, and proteinuria of 1.8 g/day. Biopsy shows glomerulitis and peritubular capillaritis with C4d-positive staining in peritubular capillaries, and donor-specific antibodies (DSA) to HLA-DQ7 are detected. Which intervention is MOST appropriate as first-line treatment?

Plasmapheresis combined with intravenous immunoglobulin (IVIG) and rituximab (Correct answer)
Bortezomib monotherapy targeting plasma cells producing DSA
Switch mycophenolate mofetil to azathioprine and increase tacrolimus trough target
High-dose IV methylprednisolone pulse therapy followed by oral prednisone taper

Correct answer: Plasmapheresis combined with intravenous immunoglobulin (IVIG) and rituximab

This presentation is classic active antibody-mediated rejection (AMR) — C4d positivity in peritubular capillaries, histologic evidence of microvascular inflammation (glomerulitis + peritubular capillaritis), and de novo DSA at 14 months are the diagnostic triad per Banff criteria. First-line treatment for active AMR involves plasmapheresis to physically remove circulating DSA, IVIG to neutralize remaining antibody and provide immunomodulation, and rituximab to deplete CD20+ B cells that may differentiate into DSA-producing plasma cells. Pulse steroids alone address T-cell–mediated rejection but are insufficient for humoral rejection. Switching MMF to azathioprine weakens immunosuppression. Bortezomib (a proteasome inhibitor targeting plasma cells) is used in refractory or chronic active AMR, not as first-line therapy.

Question 32: A kidney transplant candidate has a calculated panel reactive antibody (CPRA) of 99%. What waitlist accommodation does OPTN policy provide?

Reduced waiting time requirements compared to unsensitized candidates
Points-based priority in the allocation sequence to improve access (Correct answer)
Mandatory living-donor evaluation before deceased-donor offers
Automatic listing at the top of the national kidney waitlist

Correct answer: Points-based priority in the allocation sequence to improve access

Highly sensitized candidates with CPRA ≥98% receive additional allocation points under KAS to compensate for the extremely limited compatible donor pool.

Question 33: During the first 6 hours after simultaneous pancreas-kidney (SPK) transplantation, the transplant coordinator notes that the recipient's serum glucose has risen from 180 mg/dL to 420 mg/dL despite an insulin drip at 8 units/hour. Amylase from the bladder-drained exocrine secretions is undetectable. Kidney graft function is intact. Which condition does this pattern MOST strongly suggest?

Anastomotic leak from the duodenal segment causing pancreatic enzyme dilution
Pancreatic graft thrombosis resulting in exocrine and endocrine failure (Correct answer)
Steroid-induced hyperglycemia from intraoperative methylprednisolone bolus
Acute cellular rejection of the pancreatic allograft mediated by T-lymphocytes

Correct answer: Pancreatic graft thrombosis resulting in exocrine and endocrine failure

Absent urinary amylase in a bladder-drained SPK recipient is a sentinel sign of pancreatic graft thrombosis or infarction, as functioning exocrine tissue normally secretes amylase into the bladder. Combined with refractory hyperglycemia in the immediate postoperative period, this pattern is classic for acute graft thrombosis — the most common cause of early pancreatic graft loss. Steroid-induced hyperglycemia typically responds partially to insulin and would not abolish amylase. Acute cellular rejection rarely occurs in the first 6 hours. An anastomotic leak would cause peritoneal signs and would not selectively eliminate amylase while preserving renal function.

Question 34: Which validated tool is MOST commonly used to screen transplant candidates for alcohol use disorder?

GAD-7
PHQ-9
CAGE questionnaire only
AUDIT (Alcohol Use Disorders Identification Test) (Correct answer)

Correct answer: AUDIT (Alcohol Use Disorders Identification Test)

The AUDIT is the WHO-endorsed, validated 10-item tool most widely used for alcohol use disorder screening in transplant evaluations.

Question 35: A transplant coordinator discovers that a kidney was transplanted into a recipient whose crossmatch result was 'positive by flow cytometry' but was interpreted as 'acceptable' by the transplanting physician based on a prior desensitization protocol. This result was not re-reported to UNOS within the required timeframe. Under OPTN policy, what is the CORRECT adverse event reporting classification for a delayed crossmatch result disclosure?

An internal quality event only, exempt from OPTN reporting because the clinical decision was physician-authorized
A potential patient safety event reportable through the TIEDI system within the required reporting window (Correct answer)
A sentinel event reportable to The Joint Commission within 45 days under the Sentinel Event Policy
A Category 1 OPTN Membership and Professional Standards Committee (MPSC) deviation, subject to mandatory suspension

Correct answer: A potential patient safety event reportable through the TIEDI system within the required reporting window

OPTN policy requires transplant programs to report potential patient safety events, including delayed or missed reporting of crossmatch results, through the TIEDI (Transplant Incident Tracking and Data Integration) reporting system within defined timeframes. This is distinct from a TJC sentinel event report, which applies to unexpected deaths or serious harm, and is not categorized as an automatic MPSC suspension trigger (Category 1). Internal quality review does not exempt a program from OPTN reporting obligations.

Question 36: A renal transplant candidate with a history of transitional cell carcinoma of the bladder (T1, high-grade, treated with TURBT and BCG) completed treatment 18 months ago with no evidence of recurrence on most recent surveillance cystoscopy. The coordinator reviews the UNOS waiting period guidelines. What is the MOST appropriate next step?

Deny listing permanently because transitional cell carcinoma of the bladder is an absolute contraindication to transplant
Consult urology and oncology to determine recurrence risk; UNOS recommends individualized waiting periods for high-grade T1 urothelial carcinoma, often 2 years minimum (Correct answer)
Require a 5-year disease-free waiting period before listing, as all high-grade non-muscle-invasive bladder cancers mandate this interval
List the patient immediately because high-grade T1 bladder cancer treated with intravesical therapy requires no waiting period

Correct answer: Consult urology and oncology to determine recurrence risk; UNOS recommends individualized waiting periods for high-grade T1 urothelial carcinoma, often 2 years minimum

UNOS/OPTN and ASTS guidelines do not mandate a single universal waiting period for all bladder cancers. High-grade T1 urothelial carcinoma has significant recurrence and progression risk, but with complete resection and BCG response, individualized evaluation is recommended. Most transplant centers apply a minimum 2-year disease-free interval for high-grade non-muscle-invasive bladder cancer, with some centers extending to 5 years given progression risk to muscle-invasive disease. The key principle is individualized oncologic risk assessment in collaboration with urology and oncology — not automatic denial and not immediate listing. Permanent exclusion is not warranted for T1 disease.

Question 37: A kidney transplant recipient 4 years post-transplant has stable creatinine at 1.4 mg/dL but protocol biopsy reveals Banff Grade 2 interstitial fibrosis/tubular atrophy (IFTA) with arteriolar hyalinosis in a nodular distribution. DSA testing is negative. Which intervention has the strongest evidence for slowing further progression in this specific histologic pattern?

Initiate pulse methylprednisolone to treat subclinical rejection component
Increase tacrolimus trough targets to prevent subclinical cellular rejection driving the fibrosis
Convert tacrolimus to a mammalian target of rapamycin (mTOR) inhibitor to reduce direct calcineurin inhibitor nephrotoxicity (Correct answer)
Add mycophenolate mofetil if not already on it to enhance antiproliferative immunosuppression

Correct answer: Convert tacrolimus to a mammalian target of rapamycin (mTOR) inhibitor to reduce direct calcineurin inhibitor nephrotoxicity

Nodular arteriolar hyalinosis is the histologic hallmark of calcineurin inhibitor (CNI) nephrotoxicity — specifically tacrolimus. In DSA-negative patients with CNI toxicity-pattern IFTA, conversion from tacrolimus to an mTOR inhibitor (everolimus or sirolimus) has the strongest evidence base for halting progressive CNI-mediated nephrotoxicity. Increasing tacrolimus targets would worsen the toxicity. Pulse steroids are inappropriate without evidence of rejection. Adding MMF addresses rejection, not CNI toxicity.

Question 38: A 45-year-old prospective living kidney donor has a GFR of 78 mL/min/1.73m² and is found to carry the APOL1 high-risk genotype (two risk alleles). How should this finding influence the donor evaluation?

Automatic disqualification, as APOL1 high-risk genotype is an absolute contraindication to living donation
The finding should be incorporated into individualized risk counseling, with greater weight placed on long-term renal risk projections (Correct answer)
The finding is irrelevant because APOL1 risk applies only to recipients, not donors
Proceed without modification since the current GFR meets the standard minimum threshold

Correct answer: The finding should be incorporated into individualized risk counseling, with greater weight placed on long-term renal risk projections

APOL1 high-risk genotype (two risk alleles) is associated with significantly elevated lifetime risk of kidney disease, particularly in individuals of African ancestry. Current guidelines do not list it as an absolute contraindication, but it must be factored into individualized risk counseling. Relying solely on baseline GFR is insufficient because APOL1 risk compounds over decades post-donation, and the candidate must be informed of this heightened long-term risk.

Question 39: Transplant recipients are at a significantly increased risk for developing certain malignancies due to long-term immunosuppression. Which of the following cancers has the highest incidence in the post-transplant population?

Prostate cancer
Post-transplant lymphoproliferative disorder (PTLD)
Non-melanoma skin cancer (Correct answer)
Colorectal cancer

Correct answer: Non-melanoma skin cancer

Long-term immunosuppression dramatically increases the risk for many cancers, with non-melanoma skin cancers (squamous cell and basal cell carcinoma) being the most common malignancy by a significant margin. While PTLD risk is also highly elevated compared to the general population, its absolute incidence is lower than that of skin cancers.

Question 40: A lung transplant recipient is receiving voriconazole prophylaxis for Aspergillus and is stable on tacrolimus 3 mg twice daily with troughs of 10–12 ng/mL. Voriconazole is discontinued and fluconazole initiated. Which anticipated change in tacrolimus management is MOST appropriate in the immediate transition period?

Decrease the tacrolimus dose by 50% and check trough in 5–7 days, as fluconazole is a weaker CYP3A4 inhibitor than voriconazole and tacrolimus levels will rise transiently
No tacrolimus dose adjustment is needed because both azoles inhibit CYP3A4 equally through mechanism-based inactivation
Discontinue tacrolimus for 48 hours, then restart at the current dose, as the washout period normalizes drug-drug interaction before fluconazole takes effect
Increase the tacrolimus dose by approximately 3-fold, as voriconazole inhibits CYP3A4 more potently than fluconazole and its removal will dramatically increase tacrolimus clearance (Correct answer)

Correct answer: Increase the tacrolimus dose by approximately 3-fold, as voriconazole inhibits CYP3A4 more potently than fluconazole and its removal will dramatically increase tacrolimus clearance

Voriconazole is a potent inhibitor of CYP3A4 and CYP2C19, and typically allows tacrolimus dose reductions of 50–75% to maintain therapeutic troughs. Fluconazole also inhibits CYP3A4 but is a substantially weaker inhibitor than voriconazole. When switching from voriconazole to fluconazole, tacrolimus clearance increases significantly (because the strong inhibition is removed and replaced with weaker inhibition), and tacrolimus levels will fall. The dose must be increased — often by 2–4 fold relative to the voriconazole-adjusted dose — and troughs must be checked closely (every 3–5 days) during the transition to avoid sub-therapeutic immunosuppression and rejection.

Question 41: During a multi-organ recovery, the surgical team discovers that a previously undetected intraabdominal malignancy is present. The procurement is already underway and one kidney has been perfused. Per OPTN policy, which of the following represents the coordinator's correct sequence of actions?

Halt all procurement, discard all recovered organs, and notify OPTN within 72 hours via the required adverse event reporting pathway
Allow the lead transplant surgeon to make a unilateral determination about organ suitability and proceed based on their clinical judgment without notifying recipient centers
Proceed with recovery of non-involved organs only, and disclose the finding to recipient teams after transplantation to avoid delaying time-sensitive procedures
Immediately notify the OPTN-designated recipient transplant centers and the OPO medical director; do not proceed with any additional organ recovery until risk is communicated and centers make independent accept/decline decisions (Correct answer)

Correct answer: Immediately notify the OPTN-designated recipient transplant centers and the OPO medical director; do not proceed with any additional organ recovery until risk is communicated and centers make independent accept/decline decisions

OPTN Policy requires that unexpected findings with potential recipient health implications — including unexpected malignancies — must be immediately communicated to all affected transplant centers so that each recipient center can make an independent, informed accept or decline decision. The coordinator plays a critical role in this communication chain. Discarding organs preemptively removes recipient-center autonomy; post-transplant disclosure violates informed consent; and deferring entirely to the procurement surgeon bypasses mandatory notification requirements. Time pressure does not override disclosure obligations.

Question 42: When a recipient dies shortly after transplant due to donor-derived disease transmission, what ethical obligation does the transplant team have regarding other recipients of organs from the same donor?

Await autopsy results before notifying anyone to avoid premature alarm
Disclose only if additional recipients show symptoms
Report the event to OPTN and ensure prompt notification to other transplant centers to protect remaining recipients (Correct answer)
Notify only the physicians of other recipients, maintaining strict patient confidentiality

Correct answer: Report the event to OPTN and ensure prompt notification to other transplant centers to protect remaining recipients

OPTN policy requires prompt reporting of donor-derived disease transmission events to protect other recipients who may be at imminent risk.

Question 43: A 25-year-old patient is declared brain dead and has a clear donor designation on their driver's license. However, the patient's family is adamantly opposed to donation. According to the principles of the Uniform Anatomical Gift Act (UAGA), what is the legally correct course of action?

Inform the family that their consent is required to override the donor designation.
Honor the family's wishes and do not proceed with donation to avoid conflict.
Proceed with donation, as the donor's legally documented wishes supersede the family's objections. (Correct answer)
Seek a court order to clarify the legal standing of the donor designation.

Correct answer: Proceed with donation, as the donor's legally documented wishes supersede the family's objections.

The Uniform Anatomical Gift Act (UAGA), adopted by all states, establishes that an individual's documented decision to donate is a legally binding gift. This principle, known as first-person authorization, means the decision cannot be revoked or overridden by family members after death. The organ procurement organization should inform the family of the patient's decision, not ask for their permission.

Question 44: A transplant center's 1-year kidney graft survival rate is flagged as significantly below the SRTR expected value. Applying a PDCA (Plan-Do-Check-Act) quality improvement cycle, what should happen FIRST?

Report the deficit to the state health department and suspend new listings
Implement a new patient education program to address non-adherence
Analyze outcomes data to identify root causes of graft loss before planning any intervention (Plan phase) (Correct answer)
Immediately change the immunosuppression protocol based on a recent journal article

Correct answer: Analyze outcomes data to identify root causes of graft loss before planning any intervention (Plan phase)

PDCA begins with the Plan phase: systematic data analysis to identify root causes of the performance gap. Implementing changes without root cause analysis (jumping to 'Do') risks costly and potentially harmful interventions that miss the actual problem. The specific cause (e.g., rejection, surgical complications, infection, non-adherence) determines the appropriate intervention.

Question 45: Which lung function parameter is the primary determinant when evaluating a potential lung donor for suitability?

Residual volume
FEV1/FVC ratio
Diffusing capacity (DLCO)
PaO2/FiO2 ratio (P/F ratio) ≥300 (Correct answer)

Correct answer: PaO2/FiO2 ratio (P/F ratio) ≥300

A P/F ratio ≥300 on 100% FiO2 and 5 cmH2O PEEP indicates adequate gas exchange and donor lung viability.

Question 46: A pancreas transplant candidate with Type 1 diabetes has a creatinine of 1.2 and no significant nephropathy. Which listing category applies?

Pancreas transplant alone (PTA) (Correct answer)
Pancreas after kidney (PAK)
Simultaneous pancreas-kidney (SPK)
Pancreas-liver combined listing

Correct answer: Pancreas transplant alone (PTA)

Pancreas transplant alone (PTA) is appropriate for Type 1 diabetics with preserved kidney function who do not require renal replacement therapy.

Question 47: Under HIPAA, sharing a transplant recipient's protected health information (PHI) with the donor family requires:

Approval from the hospital's HIPAA compliance officer
Written authorization from the recipient or their legal representative (Correct answer)
Only verbal consent from the attending transplant physician
No authorization because it is a covered entity-to-covered entity transfer

Correct answer: Written authorization from the recipient or their legal representative

Sharing a recipient's PHI with the donor family requires written authorization from the recipient because it involves disclosure to a non-treatment third party.

Question 48: When educating a kidney transplant patient about signs of acute rejection, which symptom should prompt immediate contact with the transplant team?

Mild fatigue after exercise
Occasional headaches in the morning
Slight increase in appetite
Decreased urine output and tenderness over the graft site (Correct answer)

Correct answer: Decreased urine output and tenderness over the graft site

Decreased urine output and graft site tenderness are classic signs of acute kidney rejection requiring immediate evaluation.

Question 49: A liver transplant recipient with limited English proficiency relies on their adult child to interpret during education sessions. Three months post-transplant, the patient presents with signs of early rejection. The coordinator discovers the patient has been halving their tacrolimus dose because the child misunderstood the instructions. Which intervention best addresses the root cause of this adherence failure?

Enroll the patient in a telephonic adherence coaching program
Arrange for a certified medical interpreter for all future education and document that the family member is not to serve as the primary interpreter (Correct answer)
Provide written materials in the patient's native language and have the child review them
Schedule more frequent clinic visits to monitor tacrolimus levels directly

Correct answer: Arrange for a certified medical interpreter for all future education and document that the family member is not to serve as the primary interpreter

Using a family member as an interpreter violates patient rights standards (Title VI, CLAS standards) and creates risk for exactly this type of misinterpretation. A certified medical interpreter eliminates role confusion, ensures accuracy of complex dosing instructions, and preserves patient autonomy and confidentiality. Documenting this formally closes the loop on future sessions. Written materials in the native language are supplemental but do not address the real-time interpretation gap.

Question 50: The MOST important preventive measure a transplant coordinator can reinforce to reduce surgical site infection (SSI) after transplant surgery is:

Avoiding all physical activity for 12 months
Taking prophylactic broad-spectrum antibiotics indefinitely
Strict hand hygiene and proper wound care as instructed by the surgical team (Correct answer)
Avoiding all contact with other people for 6 months

Correct answer: Strict hand hygiene and proper wound care as instructed by the surgical team

Hand hygiene and proper wound assessment/care are the most evidence-based interventions to prevent SSI and should be reinforced at every post-operative visit.

Question 51: Under OPTN policy, which of the following is a required element of a transplant program's Written Agreement with its OPO?

Joint liability provisions for adverse outcomes
Defined roles and responsibilities for donor management (Correct answer)
Pricing schedules for procurement fees
Guaranteed organ allocation sequence

Correct answer: Defined roles and responsibilities for donor management

OPTN policy requires transplant programs and OPOs to have written agreements that clearly delineate roles and responsibilities in the donation and procurement process.

Question 52: Which factor is NOT directly used to calculate the Lung Allocation Score (LAS)?

Disease diagnosis group
Recipient's geographic proximity to donor hospital (Correct answer)
Predicted post-transplant survival benefit
Predicted waitlist survival without transplant

Correct answer: Recipient's geographic proximity to donor hospital

The LAS is calculated from waitlist urgency and transplant benefit measures including diagnosis group, but geographic proximity is a separate matching criterion, not an LAS component.

Question 53: A potential liver transplant candidate with alcoholic cirrhosis has been abstinent from alcohol for 4 months. Most transplant centers require a minimum of how long of documented sobriety?

1 month
2 years
18 months
6 months (Correct answer)

Correct answer: 6 months

The traditional '6-month rule' of sobriety is used by most programs, though evidence for this threshold is debated and individualized assessment is increasingly advocated.

Question 54: What is the mechanism of action of mycophenolate mofetil (MMF) in transplant immunosuppression?

Inhibits inosine monophosphate dehydrogenase, reducing lymphocyte proliferation (Correct answer)
Inhibits mTOR signaling pathway
Depletes B-cell populations via CD20 targeting
Blocks T-cell calcineurin activation

Correct answer: Inhibits inosine monophosphate dehydrogenase, reducing lymphocyte proliferation

MMF selectively inhibits IMPDH, blocking de novo purine synthesis required for lymphocyte proliferation.

Question 55: A patient being evaluated for heart transplant has been treated for non-Hodgkin's lymphoma and has been in remission for 3 years. What is the standard approach to this history?

List immediately since 3 years is always sufficient
Automatic disqualification with no further evaluation
Require 10 years of remission before any transplant evaluation
Apply disease-free interval criteria (typically 2-5 years) and assess recurrence risk with oncology (Correct answer)

Correct answer: Apply disease-free interval criteria (typically 2-5 years) and assess recurrence risk with oncology

Most centers apply disease-specific disease-free interval requirements and require oncology clearance; for lymphoma, 3 years may be acceptable depending on histology and risk.

Question 56: Which of the following laboratory values is a component of the Model for End-Stage Liver Disease-Sodium (MELD-Na) score used for adult liver allocation?

Serum Albumin
Aspartate aminotransferase (AST)
Total Bilirubin (Correct answer)
Prothrombin Time (PT)

Correct answer: Total Bilirubin

The MELD-Na score is calculated using four variables: total bilirubin, serum creatinine, International Normalized Ratio (INR), and serum sodium. While serum albumin and PT are important measures of liver function, they are not direct components of the current MELD-Na formula used for organ allocation (INR is the standardized value derived from PT).

Question 57: A lung transplant patient develops increasing hypoxia with bilateral infiltrates on CXR within 72 hours of transplant. What is the most likely diagnosis?

Primary graft dysfunction (PGD) (Correct answer)
Acute cellular rejection
Ventilator-associated pneumonia
Pulmonary embolism

Correct answer: Primary graft dysfunction (PGD)

Primary graft dysfunction presents within 72 hours with hypoxia and bilateral infiltrates from ischemia-reperfusion injury to the donor lung.

Question 58: What is the purpose of the 6-minute walk test (6MWT) in pre-transplant evaluation for heart or lung transplant candidates?

To evaluate kidney function before transplant
To objectively assess functional capacity and predict perioperative risk and post-transplant outcomes (Correct answer)
To determine MELD score components
To diagnose coronary artery disease

Correct answer: To objectively assess functional capacity and predict perioperative risk and post-transplant outcomes

The 6MWT provides an objective measure of functional exercise capacity that correlates with disease severity, waitlist mortality, and post-transplant rehabilitation potential.

Question 59: In lung transplantation, a recipient at 26 months post-transplant exhibits a progressive decline in FEV₁ to 58% of their post-transplant baseline over 6 months, without evidence of acute infection, anastomotic complications, or recurrent aspiration. High-resolution CT shows mosaic attenuation and air trapping on expiratory views, with no bronchiectasis. This presentation best fits which diagnosis, and which additional phenotypic feature would most shift management toward azithromycin therapy?

Restrictive allograft syndrome (RAS); BAL neutrophilia >15% with IL-8 elevation
Bronchiolitis obliterans syndrome (BOS) grade 2; BAL neutrophilia >15% prompting azithromycin trial (Correct answer)
Primary graft dysfunction grade 3; diffuse alveolar damage on biopsy
Cryptogenic organizing pneumonia (COP); ground-glass opacities on CT

Correct answer: Bronchiolitis obliterans syndrome (BOS) grade 2; BAL neutrophilia >15% prompting azithromycin trial

The clinical picture — gradual FEV₁ decline >20% from post-transplant baseline without identifiable cause, air trapping on HRCT, and no bronchiectasis — meets criteria for Bronchiolitis Obliterans Syndrome (BOS) Grade 2 (FEV₁ 51–65% of baseline). Unlike RAS, BOS shows predominantly obstructive physiology and air trapping rather than restriction. BAL neutrophilia >15% identifies the 'neutrophilic reversible allograft dysfunction' (NRAD) phenotype, which responds to azithromycin — making it a critical management branch point. RAS features restrictive physiology with TLC decline and diffuse pleural/parenchymal opacities, not pure air trapping.

Question 60: A transplant coordinator notes that a patient's tacrolimus trough level is 3 ng/mL at 2 years post-kidney transplant; the target is 5–8 ng/mL. What is the most appropriate action?

Switch the patient to cyclosporine immediately
Instruct the patient to take double the next dose
No action; the level is acceptable for late post-transplant period
Notify the transplant physician promptly for dose adjustment (Correct answer)

Correct answer: Notify the transplant physician promptly for dose adjustment

Subtherapeutic tacrolimus levels increase rejection risk and must be addressed by the physician with prompt dose adjustment.

Question 61: Which post-transplant infection is most commonly associated with the first month after solid organ transplantation?

CMV pneumonitis
Pneumocystis jirovecii pneumonia (PCP)
Surgical site infections and nosocomial bacterial infections (Correct answer)
Cryptococcal meningitis

Correct answer: Surgical site infections and nosocomial bacterial infections

In the first month post-transplant, nosocomial bacterial infections and surgical site infections predominate due to surgery, catheters, and hospitalization.

Question 62: A 52-year-old liver transplant candidate with a history of alcohol use disorder has maintained sobriety for 8 months. During psychosocial evaluation, his wife privately discloses to the transplant coordinator that she discovered alcohol bottles hidden in the garage two weeks ago but has not confronted her husband. How should the coordinator most appropriately handle this disclosure?

Acknowledge the wife's concern, explain the limits of confidentiality within the team, and arrange a joint meeting involving the patient, social worker, and addiction specialist (Correct answer)
Maintain confidentiality of the wife's disclosure, as she shared it privately and did not consent to relay the information
Document the wife's report and immediately remove the patient from the active waiting list pending further evaluation
Ask the wife to confront her husband directly and report back to the coordinator before any team action is taken

Correct answer: Acknowledge the wife's concern, explain the limits of confidentiality within the team, and arrange a joint meeting involving the patient, social worker, and addiction specialist

The coordinator has an ethical obligation to the patient's safety and the integrity of the transplant process. Information material to transplant candidacy cannot be siloed within a collateral informant relationship. The appropriate response is to be transparent with the wife about how the information will be used, involve the multidisciplinary team (social work, addiction medicine), and arrange a structured intervention — neither unilaterally acting to remove the patient nor ignoring a significant relapse signal.

Question 63: During a routine CMS survey, surveyors review a transplant program's organ acceptance records and note that the program declined 68% of deceased donor kidney offers over the past year. Surveyors are most likely scrutinizing this data in relation to which CMS regulatory concern?

Whether the program's decline rate reflects a discriminatory patient selection pattern under the Civil Rights Act, as reviewed by CMS
Potential non-compliance with the OPTN obligation to maximize organ utilization under 42 CFR §121.8
Whether the program's variance from national median acceptance rates triggers mandatory MPSC review under OPTN bylaws
Potential violation of the Medicare Conditions of Participation requirement that programs document medical rationale for each organ decline (Correct answer)

Correct answer: Potential violation of the Medicare Conditions of Participation requirement that programs document medical rationale for each organ decline

CMS Conditions of Participation (42 CFR §482.98(b)) require that transplant programs document the medical rationale for refusing organ offers. A high decline rate itself is not a violation, but CMS surveyors will audit whether each decline has adequate clinical documentation. This is distinct from OPTN's organ utilization obligations (which are separately enforced by OPTN/MPSC) and from civil rights review, which is not a standard CMS survey focus in this context.

Question 64: Which serum marker is used to monitor for BK virus replication in kidney transplant recipients BEFORE it causes nephropathy?

Urine culture for BK virus
Serum BK virus PCR (viremia)
Urine cytology for decoy cells followed by plasma BK PCR (Correct answer)
Serum creatinine trend alone

Correct answer: Urine cytology for decoy cells followed by plasma BK PCR

The recommended screening sequence is urine cytology for decoy cells (sensitive screen) followed by plasma BK PCR quantification to confirm viremia before nephropathy develops.

Question 65: A renal transplant recipient who immigrated from Southeast Asia develops a slowly progressive cavitary lung lesion 2 years post-transplant. Sputum cultures are negative for mycobacteria on three occasions. Transbronchial biopsy shows necrotizing granulomas, and serology is positive for Melioidosis (Burkholderia pseudomallei IgG titer 1:640). Which first-line intensive-phase regimen is indicated?

IV ceftazidime monotherapy for 2 weeks, then step-down to oral amoxicillin-clavulanate
Inhaled tobramycin plus systemic ciprofloxacin for 6 weeks targeting biofilm-associated disease
IV meropenem for a minimum of 4–8 weeks as intensive phase therapy (Correct answer)
Oral TMP-SMX for 12 weeks followed by long-term suppressive doxycycline

Correct answer: IV meropenem for a minimum of 4–8 weeks as intensive phase therapy

Melioidosis with severe/disseminated or pulmonary disease requires intensive-phase IV therapy, and IV meropenem (or IV ceftazidime) is the first-line option per current IDSA and WHO guidance, with meropenem generally preferred for serious/complicated disease due to superior efficacy. Immunosuppressed transplant recipients with cavitary disease are considered severe and warrant prolonged IV intensive therapy (4–8 weeks) before eradication-phase oral TMP-SMX. TMP-SMX alone as initial therapy is inappropriate for severe pulmonary melioidosis.

Question 66: Which of the following topics is MOST critical to include in the immediate post-transplant discharge education for a heart transplant recipient regarding infection prevention?

The schedule for future routine vaccinations.
The importance of annual skin cancer screenings.
Proper hand hygiene and avoiding large crowds and sick individuals. (Correct answer)
Long-term dietary restrictions related to cardiovascular health.

Correct answer: Proper hand hygiene and avoiding large crowds and sick individuals.

In the immediate post-transplant period, the patient is most vulnerable to opportunistic infections due to high levels of immunosuppression. Therefore, education on fundamental infection prevention strategies like meticulous hand hygiene and avoiding exposure to pathogens by staying away from crowds and sick contacts is the most critical and time-sensitive topic. Vaccinations, skin screenings, and long-term diet are important but are typically addressed in more detail later in the post-transplant course.

Question 67: A coordinator at a transplant center is reviewing a potential living kidney donor who is a non-U.S. citizen visiting on a tourist visa. The intended recipient is the donor's sibling, who is a U.S. citizen and a current patient of the program. Which regulatory consideration is MOST directly implicated in the evaluation of this living donor?

CMS Conditions of Participation requiring documentation that the donor's immigration status does not create undue financial burden on the transplant program
OPTN Policy 14.4, which prohibits transplant programs from accepting living donors who are not lawful permanent residents or citizens
The requirement under 42 CFR §121.4 that UNOS verify the legal status of all international living donors before approving the transplant
The National Organ Transplant Act (NOTA) prohibition on valuable consideration, which requires particular scrutiny when an international donor's travel and lodging expenses are reimbursed by the recipient (Correct answer)

Correct answer: The National Organ Transplant Act (NOTA) prohibition on valuable consideration, which requires particular scrutiny when an international donor's travel and lodging expenses are reimbursed by the recipient

NOTA (42 U.S.C. §274e) prohibits the transfer of human organs for valuable consideration. When an international living donor travels to the U.S. specifically to donate, programs must carefully document that any reimbursement of expenses (travel, lodging, lost wages) is genuinely compensatory and not a disguised payment for the organ. OPTN policy does not prohibit non-citizen living donors; immigration status alone does not disqualify a donor. CMS does not have a specific CoP requirement about donor immigration status, and UNOS does not independently verify immigration status before transplant approval.

Question 68: During nutritional assessment of a cirrhotic liver transplant candidate, severe sarcopenia is identified. Why is this clinically significant?

Sarcopenia is associated with increased waitlist mortality and worse post-transplant outcomes (Correct answer)
Sarcopenia only affects kidney transplant candidates
Sarcopenia has no effect on transplant outcomes
Sarcopenic patients automatically receive MELD exception points

Correct answer: Sarcopenia is associated with increased waitlist mortality and worse post-transplant outcomes

Severe muscle wasting (sarcopenia) in cirrhotic patients is independently associated with higher waitlist mortality and increased post-transplant morbidity.

Question 69: When performing a pre-transplant crossmatch, a T-cell flow cytometry crossmatch returns positive. What is the clinical implication?

The result means the donor organ is not viable
No clinical significance; transplant can proceed without modification
This result indicates ABO incompatibility
The recipient has donor-specific antibodies against T-cell antigens, increasing hyperacute rejection risk (Correct answer)

Correct answer: The recipient has donor-specific antibodies against T-cell antigens, increasing hyperacute rejection risk

A positive T-cell flow crossmatch indicates donor-specific antibodies against HLA antigens on T cells, which is generally a contraindication to transplant due to rejection risk.

Question 70: A transplant recipient traveling internationally to a developing country should be counseled to avoid which of the following to reduce infectious risk?

Using insect repellent containing DEET
Tap water, raw fruits and vegetables that cannot be peeled, and street food (Correct answer)
Drinking bottled water
Eating freshly cooked, hot foods

Correct answer: Tap water, raw fruits and vegetables that cannot be peeled, and street food

Immunocompromised travelers must avoid tap water, raw produce, and street food to minimize exposure to enteric pathogens such as Cryptosporidium, Giardia, and traveler's diarrhea organisms.

Question 71: A liver transplant recipient presents 8 months post-transplant with hematuria and a declining creatinine. Urine PCR is positive for BK virus with a viral load of 10^7 copies/mL. What is the most appropriate initial management?

Initiate intravenous immunoglobulin therapy
Add leflunomide to current regimen
Reduce immunosuppression (Correct answer)
Start cidofovir therapy immediately

Correct answer: Reduce immunosuppression

The cornerstone of BK virus nephropathy management is reduction of immunosuppression, particularly mycophenolate mofetil and/or calcineurin inhibitors, to restore antiviral immune responses.

Question 72: Which of the following is required for a legal declaration of brain death in a potential organ donor?

A reversible cause of coma
Presence of pupillary response to light
Preservation of spinal cord reflexes
Irreversible cessation of all brain functions including the brainstem (Correct answer)

Correct answer: Irreversible cessation of all brain functions including the brainstem

Brain death requires documented irreversible loss of all brain functions, including brainstem activity, confirmed by clinical examination and apnea testing.

Question 73: A transplant coordinator is educating a liver transplant recipient about tacrolimus. Which statement best describes how the patient should take this medication?

Take with a high-fat meal to improve absorption
Take only when blood levels are low
Take at the same time each day on an empty stomach (Correct answer)
Double the dose if a dose is missed

Correct answer: Take at the same time each day on an empty stomach

Tacrolimus should be taken consistently at the same time each day, often on an empty stomach, to maintain stable blood levels.

Question 74: During pre-transplant evaluation, a kidney candidate's echocardiogram reveals an ejection fraction of 30% with dilated cardiomyopathy. What is the most appropriate next step?

List the patient immediately as this is common in dialysis patients
Refer to cardiology for optimization of heart failure therapy and reassess cardiac function before finalizing listing (Correct answer)
Proceed with transplant listing but note the finding in the chart
Automatically deny listing due to low ejection fraction

Correct answer: Refer to cardiology for optimization of heart failure therapy and reassess cardiac function before finalizing listing

Reduced ejection fraction requires cardiology evaluation and optimization of heart failure treatment; listing may proceed if cardiac function improves sufficiently.

Question 75: Which member of the transplant multidisciplinary team is primarily responsible for conducting formal psychosocial evaluations of transplant candidates?

Transplant hepatologist
Transplant coordinator
Transplant social worker or psychologist (Correct answer)
Financial counselor

Correct answer: Transplant social worker or psychologist

A licensed clinical social worker or transplant psychologist performs the formal psychosocial evaluation, while the coordinator facilitates and documents the process.

Question 76: Which cytokine is primarily responsible for driving the differentiation of naive CD4+ T cells into Th17 cells?

IL-4
IL-2
TGF-β combined with IL-6 (Correct answer)
IFN-γ

Correct answer: TGF-β combined with IL-6

TGF-β combined with IL-6 drives naive CD4+ T cells toward the Th17 lineage, which produces IL-17 and contributes to certain rejection pathways.

Question 77: During the independent living donor advocate (ILDA) evaluation, a 38-year-old potential kidney donor discloses she feels mild social pressure from her family but is ultimately willing to donate. Which is the most appropriate next step?

Arrange additional ILDA sessions to further explore decisional autonomy before proceeding (Correct answer)
Proceed with the evaluation since mild social pressure is normative and does not constitute coercion
Immediately disqualify the candidate and document coercion in the medical record
Refer the candidate to the transplant social worker only if she requests it

Correct answer: Arrange additional ILDA sessions to further explore decisional autonomy before proceeding

ILDA guidelines require that any expression of ambivalence or social pressure — even mild — warrants further exploration of decisional autonomy before advancing in the evaluation. The ILDA's role is specifically to ensure the donor's decision is fully voluntary and informed; additional sessions allow this to be established without prematurely disqualifying the candidate or dismissing the concern.

Question 78: Which infectious disease screening test is mandatory for all living organ donors in the United States per OPTN policy?

West Nile Virus IgM
Toxoplasma IgG
HIV antibody/antigen combination test (Correct answer)
Hepatitis A IgG antibody

Correct answer: HIV antibody/antigen combination test

HIV screening via combination antibody/antigen test is mandatory for all living donors under OPTN policy to prevent disease transmission.

Question 79: A transplant coordinator reviews CMV prophylaxis protocols. Which transplant recipient category is considered 'high risk' and typically requires 6 months of antiviral prophylaxis rather than 3 months?

CMV D−/R− (both seronegative)
CMV D−/R+ kidney transplant
CMV D+/R+ kidney transplant on reduced immunosuppression
CMV D+/R+ (both seropositive) lung transplant (Correct answer)

Correct answer: CMV D+/R+ (both seropositive) lung transplant

Lung transplant recipients who are D+/R+ are considered high risk due to the graft being directly exposed to inhaled pathogens and the intensity of immunosuppression required, warranting extended 6-month prophylaxis.

Question 80: A transplant candidate's commercial insurer denies prior authorization for the transplant evaluation, citing 'lack of medical necessity.' What is the transplant coordinator's most appropriate FIRST step?

Facilitate a peer-to-peer review between the transplant physician and the insurer's medical director (Correct answer)
Refer the patient to a transplant center that is in-network with the insurer
Immediately file a formal complaint with the state insurance commissioner
Advise the patient to self-pay for the evaluation and seek reimbursement later

Correct answer: Facilitate a peer-to-peer review between the transplant physician and the insurer's medical director

A peer-to-peer review — direct physician-to-physician communication between the transplant clinician and the insurer's medical director — is the standard first escalation step for prior authorization denials and frequently results in approval. It is faster than formal appeals and allows the transplant physician to present individualized medical necessity evidence directly.

Question 81: Which biomarker measured during normothermic machine perfusion is the most reliable indicator of liver viability?

Bile production and lactate clearance (Correct answer)
Perfusate temperature stability
Perfusate glucose level
Perfusate color

Correct answer: Bile production and lactate clearance

Bile production demonstrates bile duct and hepatocyte function, while lactate clearance reflects mitochondrial aerobic metabolism; together they are the most validated viability markers during normothermic liver perfusion.

Question 82: A kidney transplant recipient on tacrolimus and mycophenolate presents 8 months post-transplant with fever, progressive dyspnea, and bilateral interstitial infiltrates on chest CT. Bronchoalveolar lavage shows Pneumocystis jirovecii. The patient had been on trimethoprim-sulfamethoxazole (TMP-SMX) prophylaxis but was switched to dapsone 3 months ago due to hyperkalemia. Which factor MOST likely contributed to the development of PCP despite prophylaxis?

Tacrolimus directly antagonizes dapsone metabolism via CYP3A4 induction, rendering dapsone sub-therapeutic
The 8-month post-transplant window represents a period of augmented immunosuppression due to scheduled maintenance dose increases
Mycophenolate mofetil selectively depletes memory B-cells, eliminating humoral immunity to Pneumocystis
Dapsone requires adequate G6PD activity and does not cover PCP as reliably in immunosuppressed transplant recipients when CD4 counts are not monitored (Correct answer)

Correct answer: Dapsone requires adequate G6PD activity and does not cover PCP as reliably in immunosuppressed transplant recipients when CD4 counts are not monitored

Dapsone is a second-line PCP prophylaxis agent that is less reliable than TMP-SMX in solid organ transplant recipients, particularly because it does not provide coverage for other opportunistic infections (e.g., Toxoplasma) and its efficacy depends on adequate G6PD levels. In transplant patients, CD4+ T-cell depletion from mycophenolate and tacrolimus is not routinely monitored, and dapsone's narrower spectrum and potential pharmacokinetic variability make prophylaxis failures more likely than with TMP-SMX.

Question 83: A patient's listed diagnosis changes from non-alcoholic steatohepatitis (NASH) cirrhosis to hepatocellular carcinoma (HCC). What waitlist adjustment may be indicated?

Automatic upgrade to Status 1A
No change; MELD score alone determines priority
Immediate removal and re-listing under a new diagnosis
Application for MELD exception points per OPTN policy (Correct answer)

Correct answer: Application for MELD exception points per OPTN policy

HCC meeting Milan criteria qualifies for MELD exception points through a standardized OPTN policy, increasing transplant priority beyond the calculated MELD.

Question 84: What is the recommended minimum age for a living organ donor in the United States per OPTN policy?

18 years of age (Correct answer)
25 years of age
16 years of age with parental consent
21 years of age

Correct answer: 18 years of age

OPTN policy requires living donors to be at least 18 years old to ensure legal capacity for informed consent.

Question 85: A transplant coordinator is discussing advance directives with a patient awaiting a liver transplant. Why is this discussion particularly important in this population?

Advance directives are only relevant for patients over age 65
Advance directives reduce insurance premiums for transplant patients
Transplant centers legally require advance directives before listing
Patients face significant perioperative and long-term mortality risks, making end-of-life preferences important to document proactively (Correct answer)

Correct answer: Patients face significant perioperative and long-term mortality risks, making end-of-life preferences important to document proactively

Transplant candidates face serious perioperative risks and long-term complications, making advance care planning an essential part of the pretransplant education process.

Question 86: When a transplant center's observed-to-expected (O/E) outcomes ratio triggers a flagging threshold, CMS requires the center to:

Immediately suspend transplant operations
Submit a written response and corrective action plan to CMS (Correct answer)
Report the outcomes to the state health department within 30 days
Notify all current waitlist patients of the outcomes data

Correct answer: Submit a written response and corrective action plan to CMS

When flagged by CMS, a transplant center must provide a written response explaining outcomes and submit a corrective action plan demonstrating steps to improve performance.

Question 87: A kidney transplant recipient from a collectivist cultural background defers all medical decisions to the eldest male family member. The CCTC should:

Override cultural practices to ensure informed individual consent per US law
Document the situation and proceed without modification
Refuse to proceed until the patient makes independent decisions
Culturally adapt the consent process by including the designated family decision-maker while ensuring the patient has opportunity to privately express any concerns (Correct answer)

Correct answer: Culturally adapt the consent process by including the designated family decision-maker while ensuring the patient has opportunity to privately express any concerns

Culturally competent care adapts processes to respect collectivist decision-making while still safeguarding the patient's right to express preferences privately.

Question 88: A transplant coordinator discovers a labeling error on a kidney that has already been shipped to the accepting center. The FIRST priority action is to:

Notify the receiving center immediately to place the organ on hold (Correct answer)
Inform the transplant surgeon and wait for guidance
File an internal incident report within 24 hours
Contact UNOS DonorNet to update the record

Correct answer: Notify the receiving center immediately to place the organ on hold

Immediate notification to the receiving center ensures the organ is not implanted until the discrepancy is resolved, prioritizing patient safety above documentation steps.

Question 89: An OPTN-required Death Record Review reveals a pattern showing that a specific coordinator consistently documents neurological exam findings 2–4 hours before the formal brain death declaration in a manner that may have influenced ICU management decisions. This scenario most directly raises concerns under which ethical and regulatory framework?

The principle of beneficence, because early documentation may have accelerated organ viability
Distributive justice, since inconsistent death documentation may disadvantage certain recipient populations
Informed consent doctrine, because families were not told of the coordinator's documentation practices
Conflict of interest and the dead donor rule, as procurement interest must not influence clinical determination of death (Correct answer)

Correct answer: Conflict of interest and the dead donor rule, as procurement interest must not influence clinical determination of death

The dead donor rule is a foundational ethical and legal principle requiring that organ procurement must not cause the donor's death, and that death must be determined by clinicians entirely independent of transplant interests. OPTN policies explicitly prohibit OPO personnel from being involved in declaring death. Premature or influential documentation by a coordinator in the ICU suggests a potential conflict of interest that violates this separation. While beneficence and distributive justice are real ethical principles, the core issue here is the integrity of the death determination process.

Question 90: A liver transplant recipient develops Aspergillus fumigatus infection of the anastomotic bile duct 6 weeks post-transplant. Which factor in this patient's post-transplant course MOST significantly predisposed them to this specific fungal infection at this site?

Prolonged biliary stent placement with cholangitis prior to transplant
Prolonged neutropenia lasting more than 10 days post-transplant
Use of high-dose corticosteroids for acute cellular rejection at week 3
Receipt of an extended criteria donor liver with cold ischemia time >14 hours (Correct answer)

Correct answer: Receipt of an extended criteria donor liver with cold ischemia time >14 hours

Anastomotic biliary aspergillosis in liver transplant recipients is strongly associated with ischemic cholangiopathy, which is itself linked to prolonged cold ischemia time in extended criteria donors (>12–14 hours). Ischemic biliary strictures create a niche environment with impaired mucociliary clearance and local tissue hypoxia that facilitates Aspergillus colonization and invasion. While prolonged neutropenia predisposes to invasive aspergillosis systemically, liver transplant recipients rarely have prolonged neutropenia. Corticosteroid pulses increase overall fungal risk but are not site-specific to bile duct anastomoses. Biliary stents predispose to bacterial cholangitis more than fungal biliary disease.

Question 91: A kidney transplant patient's morning labs show a tacrolimus trough level of 24 ng/mL (target 8-12 ng/mL). What is the most appropriate action?

Hold next dose and notify the transplant physician (Correct answer)
Switch to cyclosporine immediately
Continue current dose and recheck in one week
Double the dose to compensate for the high level

Correct answer: Hold next dose and notify the transplant physician

A supratherapeutic tacrolimus level increases nephrotoxicity and neurotoxicity risk; the dose should be held and the physician notified for dose adjustment.

Question 92: What is the primary purpose of induction immunosuppression therapy in transplantation?

To provide intense immunosuppression at the time of highest rejection risk around the transplant surgery (Correct answer)
To prevent viral infections in the perioperative period
To treat active rejection episodes
To maintain long-term graft survival indefinitely

Correct answer: To provide intense immunosuppression at the time of highest rejection risk around the transplant surgery

Induction therapy provides high-intensity immunosuppression during the peritransplant period when alloreactivity is greatest.

Question 93: A pancreas transplant recipient develops hyperglycemia on postoperative day 1. What is the most important first step?

Initiate insulin drip immediately
Administer glucagon
Increase tacrolimus dose
Assess graft perfusion with Doppler ultrasound (Correct answer)

Correct answer: Assess graft perfusion with Doppler ultrasound

Sudden hyperglycemia after pancreas transplant may indicate graft thrombosis or failure, so vascular assessment with Doppler should precede insulin therapy.

Question 94: When assessing a living liver donor, which remnant liver volume is generally considered the minimum safe threshold for the donor?

15% of total liver volume
40% of total liver volume
30% of total liver volume (Correct answer)
20% of total liver volume

Correct answer: 30% of total liver volume

A remnant liver volume of at least 30% is generally required to ensure adequate hepatic function and safe recovery for the donor.

Question 95: A heart transplant recipient presents 3 years post-transplant with subacute meningitis, headache, and papilledema. CSF India ink preparation is negative, but CSF cryptococcal antigen (CrAg) titer returns 1:2048. MRI shows no focal lesions. After initiating liposomal amphotericin B plus flucytosine induction, which additional intervention is MOST critical in the immediate management of this patient?

Initiation of corticosteroids to reduce CNS inflammation
Immediate reduction of calcineurin inhibitor to allow immune reconstitution
Serial therapeutic lumbar punctures (or CSF drainage) to manage elevated intracranial pressure (Correct answer)
Addition of fluconazole concurrently during induction to improve fungal clearance

Correct answer: Serial therapeutic lumbar punctures (or CSF drainage) to manage elevated intracranial pressure

In cryptococcal meningitis, elevated intracranial pressure (ICP) is a major cause of morbidity and mortality, independent of antifungal therapy. Serial lumbar punctures (or CSF drainage via lumbar drain or VP shunt in refractory cases) are critical to lower ICP and improve outcomes — this is a cornerstone of management per IDSA guidelines. Reducing calcineurin inhibitors risks rejection and is not the immediate priority. Adding fluconazole during amphotericin B induction is not standard and can be antagonistic in some models. Corticosteroids are contraindicated in cryptococcal meningitis without a specific inflammatory complication (IRIS management), as they worsen fungal clearance.

Question 96: A lung transplant recipient 4 years post-bilateral lung transplant develops a progressive decline in FEV1 to 58% of their personal post-transplant best, with obstructive physiology, no identified infection, and CT showing mosaic attenuation and air trapping. Bronchoscopy with BAL is negative for infection, and transbronchial biopsies show no acute rejection. The MOST likely diagnosis and its Lung Allograft Dysfunction classification are:

Lymphocytic bronchiolitis grade B2R, requiring methylprednisolone pulse
Restrictive allograft syndrome (RAS) grade 1, classified as chronic lung allograft dysfunction (CLAD)
Acute rejection grade A2, requiring augmented immunosuppression
Bronchiolitis obliterans syndrome (BOS) grade 2, classified as chronic lung allograft dysfunction (CLAD) (Correct answer)

Correct answer: Bronchiolitis obliterans syndrome (BOS) grade 2, classified as chronic lung allograft dysfunction (CLAD)

This presentation — obstructive decline to 58% of post-transplant best FEV1, air trapping on CT, negative infection workup, and negative biopsy for acute rejection — is classic for Bronchiolitis Obliterans Syndrome (BOS), the obstructive phenotype of chronic lung allograft dysfunction (CLAD). BOS grade 2 is defined as FEV1 51–65% of best. CLAD encompasses both BOS (obstructive) and RAS (restrictive, defined by TLC reduction and fibrotic pattern). RAS typically shows upper-lobe fibrosis and pleuroparenchymal fibroelastosis on CT. Acute rejection (A2) requires histologic evidence. Lymphocytic bronchiolitis (B2R) is a biopsy diagnosis showing lymphocytic infiltration of bronchiolar walls.

Question 97: Which vaccine is CONTRAINDICATED in solid organ transplant recipients on immunosuppression?

Pneumococcal polysaccharide vaccine
Live attenuated varicella zoster vaccine (Correct answer)
Inactivated influenza vaccine
Recombinant hepatitis B vaccine

Correct answer: Live attenuated varicella zoster vaccine

Live attenuated vaccines are contraindicated in immunocompromised transplant recipients due to risk of vaccine-strain infection.

Question 98: On POD 2 following a simultaneous pancreas-kidney transplant (SPK), the patient develops a serum amylase of 2,800 U/L and lipase of 4,100 U/L with increasing abdominal tenderness. The transplant coordinator anticipates the surgical team will FIRST order:

ERCP to rule out anastomotic leak at the exocrine drainage site
Urgent return to OR for pancreatic graft pancreatectomy given the severity of enzyme elevation
Empiric broad-spectrum antibiotics and total parenteral nutrition for presumed graft pancreatitis
CT angiography of the abdomen and pelvis with IV contrast to evaluate pancreatic graft perfusion and exclude vascular thrombosis (Correct answer)

Correct answer: CT angiography of the abdomen and pelvis with IV contrast to evaluate pancreatic graft perfusion and exclude vascular thrombosis

Elevated pancreatic enzymes in the early post-SPK period may represent preservation/reperfusion pancreatitis, but vascular thrombosis — particularly venous thrombosis — is an early catastrophic complication that must be excluded urgently. CT angiography is the first-line imaging to assess graft perfusion and detect vascular compromise before any other intervention. ERCP is inappropriate in early postoperative SPK. Empiric treatment without ruling out thrombosis risks irreversible graft loss. Pancreatectomy without imaging confirmation of thrombosis would be premature.

Question 99: A transplant coordinator identifies that a listed patient has stopped attending required pre-transplant support group sessions. The MOST appropriate first step is to:

Refer the patient directly to psychiatry without prior contact
Contact the patient to assess barriers to attendance and problem-solve solutions (Correct answer)
Document the missed sessions without intervention
Remove the patient from the waitlist immediately for non-compliance

Correct answer: Contact the patient to assess barriers to attendance and problem-solve solutions

Proactively reaching out to assess and address barriers maintains the therapeutic relationship and gives the patient an opportunity to re-engage before escalating consequences.

Question 100: A waitlisted thoracic candidate asks about living donor options. Which transplant type has an established living-donor protocol?

Living-donor total artificial heart bridge
Living-donor heart transplant
Living-donor heart-lung transplant
Living-donor lobar lung transplant (Correct answer)

Correct answer: Living-donor lobar lung transplant

Living-donor lobar lung transplantation, where two donors each contribute a lower lobe, is an established but rare procedure for select candidates.

Question 101: A 1-year post-kidney transplant recipient presents with a rising serum creatinine. A renal biopsy confirms BK virus nephropathy. What is the primary initial management strategy for this condition?

Initiate a course of high-dose corticosteroids.
Administer intravenous immunoglobulin (IVIG).
Reduce the dosage of immunosuppressive medications. (Correct answer)
Increase the dose of valganciclovir.

Correct answer: Reduce the dosage of immunosuppressive medications.

The cornerstone of management for BK virus nephropathy is the reduction of immunosuppression. This allows the patient's own immune system to clear the virus. This must be balanced carefully to avoid triggering an acute rejection episode. While other agents like IVIG or cidofovir may be used as adjunctive therapies, decreasing the immunosuppressive load is the first-line approach.

Question 102: Which OPTN-required document must a living donor sign to confirm they understand they may withdraw consent at any time without penalty?

Living Donor Informed Consent Acknowledgment (Correct answer)
Living Donor Medical History Form
Donor Attestation Form
HIPAA Release Authorization

Correct answer: Living Donor Informed Consent Acknowledgment

The Living Donor Informed Consent Acknowledgment documents the donor's understanding of voluntary participation, including the right to withdraw.

Question 103: An intestinal transplant recipient (isolated small bowel, day 21 post-transplant) undergoes surveillance ileoscopy. Biopsy of the neoterminal ileum shows diffuse crypt apoptosis with >6 apoptotic bodies per 10 crypts, crypt dropout, and villous blunting. There is no viral cytopathic effect on hematoxylin and eosin staining, and CMV immunohistochemistry is negative. The NEXT most appropriate diagnostic step is:

Send mucosal tissue for EBV in situ hybridization (EBER) and adenovirus immunohistochemistry or PCR (Correct answer)
Send stool EBV viral load to evaluate for post-transplant lymphoproliferative disorder involving the graft
Treat empirically for acute cellular rejection with high-dose IV methylprednisolone
Obtain serum donor-specific antibodies and perform C4d staining to rule out antibody-mediated rejection

Correct answer: Send mucosal tissue for EBV in situ hybridization (EBER) and adenovirus immunohistochemistry or PCR

In intestinal transplantation, the histologic differential for diffuse crypt apoptosis without viral cytopathic effect includes acute cellular rejection, adenovirus enteritis, and EBV-associated mucosal disease. CMV has been excluded. Adenovirus is a major cause of graft loss in intestinal recipients and can mimic rejection histologically — it must be excluded before empiric rejection treatment, as steroids would worsen adenoviral disease. EBV EBER staining evaluates for mucosal EBV replication distinct from PTLD. The correct next step is tissue-level viral workup (adenovirus IHC/PCR and EBER), NOT empiric steroid treatment. Treating presumed rejection without excluding adenovirus is a high-risk error unique to intestinal transplant management.

Question 104: A renal transplant recipient presents 18 months post-transplant with fever, fatigue, and a CD4 count of 120 cells/µL. CMV viremia is negative. Which opportunistic infection should be highest on the differential?

Cytomegalovirus colitis
Cryptococcal meningitis
BK virus nephropathy
Pneumocystis jirovecii pneumonia (PJP) (Correct answer)

Correct answer: Pneumocystis jirovecii pneumonia (PJP)

PJP prophylaxis is often discontinued at 6-12 months, leaving patients vulnerable; low CD4 count and fever in an immunosuppressed host strongly suggests PJP.

Question 105: A 58-year-old patient being evaluated for kidney transplant has a calculated panel reactive antibody (cPRA) of 98%. During the virtual crossmatch process, the transplant coordinator identifies that the patient has donor-specific antibodies (DSAs) against HLA-DQ7 with a mean fluorescence intensity (MFI) of 4,200. The transplant nephrologist asks the coordinator to document the immunologic risk tier. Which classification best describes this candidate's crossmatch risk?

Unacceptable immunologic risk; the patient should be removed from the waiting list
Moderate risk; DSAs against HLA class II antigens are clinically insignificant compared to class I
High immunologic risk requiring desensitization protocol consideration due to elevated cPRA with confirmed DSA (Correct answer)
Low immunologic risk because MFI is below 5,000

Correct answer: High immunologic risk requiring desensitization protocol consideration due to elevated cPRA with confirmed DSA

A cPRA of 98% combined with confirmed donor-specific antibodies — even with MFI below 5,000 — places this patient in a high immunologic risk category. HLA-DQ DSAs are clinically significant and have been independently associated with antibody-mediated rejection. The transplant team must weigh desensitization protocols, acceptable/unacceptable antigen listings, and paired kidney exchange options. An MFI cutoff alone does not define risk tier; DSA specificity, C1q-binding capacity, and complement activation potential are all considered. Removal from the list is not warranted — high immunologic risk patients are still transplant candidates with appropriate protocols.

Question 106: Which bile duct reconstruction technique is preferred in liver transplantation when recipient bile duct is of adequate quality?

Duct-to-duct choledochocholedochostomy (Correct answer)
Cholecystojejunostomy
Hepaticogastrostomy
Roux-en-Y hepaticojejunostomy

Correct answer: Duct-to-duct choledochocholedochostomy

Duct-to-duct (choledochocholedochostomy) biliary anastomosis is preferred as it preserves the sphincter of Oddi and allows ERCP access for post-transplant biliary complications.

Question 107: Which malignancy has the highest increased incidence in long-term transplant recipients compared to the general population?

Colon cancer
Non-melanoma skin cancer (Correct answer)
Breast cancer
Prostate cancer

Correct answer: Non-melanoma skin cancer

Non-melanoma skin cancers (squamous and basal cell) are dramatically more common in transplant recipients, with squamous cell carcinoma occurring up to 100 times more often.

Question 108: During cardiovascular risk stratification for a 62-year-old diabetic patient awaiting liver transplant, a dobutamine stress echocardiogram reveals inducible wall motion abnormalities in the LAD territory. Coronary angiography subsequently demonstrates 75% stenosis of the proximal LAD. The cardiac surgeon recommends CABG. Which statement best reflects the transplant team's appropriate management of this finding?

The patient should undergo CABG, complete a structured cardiac rehabilitation program, and be re-evaluated for transplant candidacy after demonstrating functional recovery (Correct answer)
The patient can be listed immediately after CABG without further cardiac clearance since revascularization resolves the ischemic risk
The finding is an absolute contraindication to liver transplant and the patient should be permanently delisted
PCI with stenting is preferred over CABG in this scenario because it avoids the immunosuppression interaction risk associated with antiplatelet therapy post-CABG

Correct answer: The patient should undergo CABG, complete a structured cardiac rehabilitation program, and be re-evaluated for transplant candidacy after demonstrating functional recovery

Significant coronary artery disease is a correctable barrier in many cases, not an automatic absolute contraindication. The standard approach is revascularization followed by reassessment of functional cardiac status and candidacy. CABG does not eliminate the need for post-operative re-evaluation; the team must confirm adequate recovery and functional reserve before proceeding with transplant. Immediate listing post-CABG without re-evaluation is inappropriate.

Question 109: A transplant program's MPSC review flags the program for a 1-year patient survival rate that falls below the expected threshold for two consecutive review periods. The program has submitted a written response with a corrective action plan. If the MPSC determines the response is inadequate, what is the MOST likely next escalation step under OPTN bylaws?

Automatic suspension of the program's transplant activity pending a full CMS survey triggered by the MPSC finding
Referral to the OPTN Board of Directors for imposition of a membership sanction, which may include required inactive status (Correct answer)
Mandatory external peer review by a CMS-designated accreditation organization such as The Joint Commission
Immediate decertification from Medicare, as two consecutive below-threshold periods constitute a deemed failure under 42 CFR §482.80

Correct answer: Referral to the OPTN Board of Directors for imposition of a membership sanction, which may include required inactive status

Under OPTN bylaws, when the MPSC (Membership and Professional Standards Committee) finds a program's corrective action response inadequate after flagging for outcome deficiencies, it escalates the matter to the OPTN Board of Directors. The Board has authority to impose membership sanctions, including required inactive status (a suspension of transplant activity). Automatic CMS survey, Joint Commission external review, and Medicare decertification are not the direct next steps — CMS may independently act, but the OPTN escalation path runs through its own governance structure.

Question 110: A kidney transplant recipient on POD 1 receives mycophenolate mofetil (MMF) 1,500 mg BID. The patient's chart shows she was initiated on oral vancomycin preoperatively for recurrent C. difficile. The transplant coordinator should flag this combination because:

Vancomycin potentiates MMF nephrotoxicity, increasing the risk of tubular necrosis in the newly transplanted kidney
Oral vancomycin is systemically absorbed and inhibits CYP3A4, leading to dangerously elevated MMF plasma levels
Concurrent use of MMF and vancomycin dramatically increases the risk of BK virus nephropathy by over-immunosuppressing the patient
Oral vancomycin can significantly reduce MMF bioavailability by disrupting gut flora that convert MMF to its active metabolite, mycophenolic acid (Correct answer)

Correct answer: Oral vancomycin can significantly reduce MMF bioavailability by disrupting gut flora that convert MMF to its active metabolite, mycophenolic acid

MMF is a prodrug converted by gut esterases and enterohepatic recirculation — dependent on intestinal flora — to its active form, mycophenolic acid (MPA). Oral vancomycin, while minimally systemically absorbed, profoundly alters gut microbiota. This disruption can reduce enterohepatic recirculation of MPA, lowering the effective immunosuppressive exposure and increasing rejection risk. This is a clinically relevant pharmacokinetic interaction that transplant coordinators must recognize. Vancomycin does not cause nephrotoxicity when given orally (no systemic absorption), does not directly increase BK risk independent of total immunosuppression level, and does not inhibit CYP3A4 systemically.

Question 111: During evaluation of a potential living liver donor, volumetric CT reveals a left lobe volume of 38% of the total estimated liver volume (TELV) with 12% hepatic steatosis. The intended recipient has a MELD score of 28 and weighs 90 kg. Which factor is the MOST critical determinant of whether this donation plan is safe to proceed?

The recipient's MELD score, which is too high for a left lobe graft regardless of other factors
The graft-to-recipient weight ratio (GRWR), which must typically exceed 0.8% to avoid small-for-size syndrome (Correct answer)
The degree of steatosis, which absolutely contraindicates donation if greater than 10%
The donor's remnant liver volume, which must be at least 20% for safe donor hepatectomy

Correct answer: The graft-to-recipient weight ratio (GRWR), which must typically exceed 0.8% to avoid small-for-size syndrome

In living donor liver transplantation, the graft-to-recipient weight ratio (GRWR) is the critical determinant of small-for-size syndrome (SFSS) risk. A GRWR <0.8% significantly increases the risk of SFSS, which causes primary non-function or dysfunction in the setting of portal hyperperfusion relative to graft mass. A 90 kg recipient with a left lobe must have the GRWR calculated; a left lobe at 38% TELV may not provide sufficient mass. Steatosis >30% (not 10%) is a contraindication. MELD 28 increases recipient urgency but doesn't absolutely preclude left lobe. Donor remnant safety threshold is ≥30% (not 20%) in most programs.

Question 112: What is the mechanism by which belatacept prevents T-cell activation compared to calcineurin inhibitors?

It inhibits the CD28-B7 costimulatory pathway (Correct answer)
It prevents mTOR-mediated proliferation
It depletes circulating T lymphocytes
It blocks IL-2 receptor signaling

Correct answer: It inhibits the CD28-B7 costimulatory pathway

Belatacept is a CTLA4-Ig fusion protein that blocks CD28-B7 costimulation, preventing the second signal required for full T-cell activation.

Question 113: Which UNOS policy governs how transplant programs must document patient contact attempts to maintain active waitlist status?

OPTN Policy 18.1 requiring documented patient contact every 6 months (Correct answer)
Joint Commission standards for transplant program communication
CMS Conditions of Participation for outpatient follow-up
OPTN Policy requiring contact every 3 months for inactive patients

Correct answer: OPTN Policy 18.1 requiring documented patient contact every 6 months

OPTN Policy 18.1 requires transplant programs to document attempts to contact active waitlisted candidates at least every 6 months.

Question 114: A transplant recipient returns from international travel with fever, night sweats, and weight loss. Chest imaging shows upper lobe cavitary lesions. Which opportunistic infection must be immediately excluded?

Cryptococcus neoformans meningitis
Mycobacterium tuberculosis reactivation (Correct answer)
Nocardia farcinica pulmonary abscess
Histoplasma capsulatum pulmonary infection

Correct answer: Mycobacterium tuberculosis reactivation

Mycobacterium tuberculosis must be urgently excluded in any immunocompromised patient with upper lobe cavitary lesions, fever, and constitutional symptoms, as reactivation risk is significantly elevated post-transplant.

Question 115: A liver transplant recipient on tacrolimus (trough 6 ng/mL), mycophenolate mofetil 1g BID, and prednisone 5 mg/day is 5 years post-transplant. She is started on rifampin for latent TB prophylaxis after a positive IGRA. Her tacrolimus trough drops to 1.2 ng/mL within 10 days despite no dose change. The transplant coordinator's MOST appropriate immediate action is:

Discontinue mycophenolate to reduce overall immunosuppression while rifampin is continued
Increase tacrolimus empirically by 3-fold and recheck trough in 1 week
Contact the physician to discuss switching rifampin to isoniazid and monitoring closely for rejection (Correct answer)
Add voriconazole to inhibit CYP3A4 and restore tacrolimus levels

Correct answer: Contact the physician to discuss switching rifampin to isoniazid and monitoring closely for rejection

Rifampin is a potent inducer of CYP3A4 and P-glycoprotein, causing dramatic drops in tacrolimus levels (often 3–5 fold) that are difficult to manage even with dose escalation. The coordinator's role is to promptly alert the physician so the regimen can be reconsidered — isoniazid alone (if the organism is susceptible) avoids this interaction. Simply tripling the tacrolimus dose is unpredictable and risks toxicity when rifampin is stopped. Discontinuing mycophenolate increases rejection risk without solving the drug-level problem. Using voriconazole as a CYP inhibitor is not an appropriate strategy and creates its own interaction profile.

Question 116: Nicotine use is most critically addressed in pre-transplant evaluation for which organ recipient population?

Liver transplant recipients
Lung and heart transplant recipients (Correct answer)
Kidney transplant recipients
Pancreas transplant recipients

Correct answer: Lung and heart transplant recipients

Active smoking is a major risk factor for graft failure and bronchiolitis obliterans in lung recipients, and nearly all US lung and heart transplant programs require smoking cessation as a listing criterion.

Question 117: A heart transplant recipient develops the following hemodynamic profile 4 hours postoperatively: cardiac output 2.1 L/min, cardiac index 1.1 L/min/m², central venous pressure 18 mmHg, pulmonary artery wedge pressure 22 mmHg, and systemic vascular resistance 1,800 dyne·s/cm⁵. The ECG shows sinus tachycardia at 115 bpm with new right bundle branch block. Which pharmacological intervention is MOST appropriate FIRST?

Start IV milrinone infusion combined with inhaled prostacyclin to address biventricular failure with elevated PVR (Correct answer)
Bolus IV epinephrine 0.5 mg to augment contractility and systemic pressure
Initiate high-dose inhaled nitric oxide at 80 ppm to reduce pulmonary vascular resistance
Administer IV methylprednisolone 1 g for presumed acute hyperacute rejection

Correct answer: Start IV milrinone infusion combined with inhaled prostacyclin to address biventricular failure with elevated PVR

The hemodynamic profile reflects low cardiac output, elevated filling pressures bilaterally, high SVR, and a new RBBB, indicating biventricular failure in the setting of elevated pulmonary vascular resistance — a recognized complication when the donor heart encounters a recipient's chronically elevated PVR. Milrinone (a phosphodiesterase inhibitor) provides inodilatory support and reduces PVR, while inhaled prostacyclin further selectively lowers pulmonary pressures without dropping systemic resistance. Inhaled NO at 80 ppm alone does not address the severely depressed cardiac output. Methylprednisolone treats rejection, not primary graft dysfunction from RV afterload mismatch. An epinephrine bolus would increase SVR and worsen RV afterload.

Question 118: A transplant coordinator notes that a recipient's anti-HBs titer has dropped below 10 mIU/mL after receiving a liver from an HBsAg-negative, HBcAb-positive donor. What is the most appropriate long-term management strategy?

No treatment required since donor was HBsAg-negative
Start lamivudine for 12 months then reassess
Administer hepatitis B vaccine booster series and monitor titers annually
Start indefinite entecavir prophylaxis and monitor HBV DNA levels (Correct answer)

Correct answer: Start indefinite entecavir prophylaxis and monitor HBV DNA levels

Recipients of grafts from HBcAb-positive donors are at risk for de novo hepatitis B infection and require indefinite antiviral prophylaxis with a potent agent like entecavir along with regular HBV DNA monitoring.

Question 119: The 'look-back' investigation triggered by a newly identified donor-derived disease transmission must include:

Mandatory disclosure to the implicated donor's family within 48 hours
Testing of all recipients from donors at the same OPO in the prior year
A UNOS-mandated suspension of the OPO pending investigation results
Notification and testing of all recipients who received organs from the implicated donor (Correct answer)

Correct answer: Notification and testing of all recipients who received organs from the implicated donor

A donor-derived disease look-back requires identification and notification of all recipients who received organs from the implicated donor, along with appropriate testing and follow-up.

Question 120: When assessing social support in a transplant candidate who lives alone, the coordinator should prioritize:

Requiring the candidate to marry or cohabitate before listing
Automatic denial of candidacy due to lack of a live-in caregiver
Proceeding with listing without addressing the social support gap
Developing a structured support plan with identified backup caregivers and community resources (Correct answer)

Correct answer: Developing a structured support plan with identified backup caregivers and community resources

Living alone is a risk factor but not an absolute contraindication; a documented plan identifying available support people and community services can adequately address this gap.

Question 121: A donor kidney is retrieved and placed in University of Wisconsin (UW) solution. During back-table preparation, the transplant team notes the total warm ischemia time was 28 minutes. Which component of UW solution is primarily responsible for preventing hypothermia-induced cell swelling?

Hydroxyethyl starch maintaining oncotic pressure
Adenosine providing substrate for ATP regeneration
High potassium concentration mimicking intracellular fluid
Lactobionate and raffinose acting as impermeants (Correct answer)

Correct answer: Lactobionate and raffinose acting as impermeants

Lactobionate and raffinose are the key impermeants in UW solution. These large molecules cannot cross cell membranes, preventing the osmotic shift of water into cells that occurs during hypothermic storage when Na+/K+ ATPase activity is arrested. Hydroxyethyl starch contributes to colloid oncotic pressure in the vascular space but is not the primary anti-swelling mechanism at the cellular level. High potassium mimics intracellular composition to reduce concentration gradients but does not directly prevent cell swelling. Adenosine supports ATP regeneration on reperfusion.

Question 122: What is the role of heparin administration during organ procurement, and when is it typically given?

Heparin is contraindicated in organ procurement due to bleeding risk
Heparin is given to the recipient only, not the donor
Heparin is administered to the donor before cross-clamp to prevent intravascular clotting in the procured organs (Correct answer)
Heparin is added to the preservation flush solution only

Correct answer: Heparin is administered to the donor before cross-clamp to prevent intravascular clotting in the procured organs

Heparin is administered intravenously to the donor before aortic cross-clamp to prevent microvascular thrombosis in the organs during the ischemic period, ensuring better perfusion when flushed.

Question 123: Annual inactivated influenza vaccination is recommended for transplant recipients primarily because:

It prevents CMV reactivation
Influenza infection can trigger acute rejection and cause severe disease in immunocompromised hosts (Correct answer)
It is mandated by Medicare conditions of participation
It is required by UNOS policy

Correct answer: Influenza infection can trigger acute rejection and cause severe disease in immunocompromised hosts

Influenza can cause severe illness, pneumonia, and may trigger immune activation leading to acute rejection in transplant recipients, making annual vaccination critical.

Question 124: A pre-transplant candidate has an incidental finding of a 2 cm renal mass on imaging during kidney transplant evaluation. What should occur before listing?

List immediately and plan to monitor the mass post-transplant
Remove the patient from evaluation and recommend palliative care
Obtain further characterization with CT or MRI and urology consultation to exclude malignancy (Correct answer)
Ignore the finding as the patient already has end-stage renal disease

Correct answer: Obtain further characterization with CT or MRI and urology consultation to exclude malignancy

Any suspicious renal mass requires urologic evaluation and potential biopsy or resection to rule out malignancy before immunosuppression is initiated.

Question 125: A kidney transplant recipient in the immediate postoperative period develops urine output of 800 mL/hour for the first 3 hours, followed by a sudden drop to 20 mL/hour. The patient's blood pressure is 110/70 mmHg and CVP is 8 mmHg. Bladder irrigation confirms catheter patency. Which etiology is MOST likely responsible for this abrupt change?

Ureterovesical anastomotic obstruction secondary to edema or clot (Correct answer)
Resolution of post-reperfusion diuresis with return to recipient's baseline oligoanuria
Hyperacute rejection mediated by preformed donor-specific antibodies
Calcineurin inhibitor-induced acute vasoconstriction of the allograft vasculature

Correct answer: Ureterovesical anastomotic obstruction secondary to edema or clot

A brisk post-reperfusion diuresis followed by abrupt oliguria with a patent catheter and adequate perfusion pressure is classic for ureterovesical junction obstruction, commonly from clot or peri-anastomotic edema in the first 24–48 hours. Hyperacute rejection would manifest within minutes of reperfusion and the graft would be non-functional from the outset. CNI vasoconstriction typically causes a gradual decline, not a sudden drop after robust diuresis. Return to baseline is possible but would be gradual and should not follow established high-output diuresis so abruptly.

Question 126: A living kidney donor later experiences renal failure and requires a transplant. Many programs offer prioritization to such donors. What ethical principle supports this policy?

Autonomy — honoring the donor's original decision to donate
Non-maleficence — compensating for harm caused by the transplant system
Beneficence — maximizing overall health outcomes in the population
Justice — reciprocal fairness for those who accepted risk to benefit others (Correct answer)

Correct answer: Justice — reciprocal fairness for those who accepted risk to benefit others

Prioritizing prior living donors reflects reciprocal justice, recognizing that they accepted personal risk to benefit another and deserve corresponding consideration.

Question 127: Which scoring system is used to assess disease severity and waitlist priority for patients with primary biliary cholangitis awaiting liver transplant?

MELD or MELD-Na (Correct answer)
UKELD score
Mayo Risk Score only
Child-Pugh alone

Correct answer: MELD or MELD-Na

MELD or MELD-Na is the standard UNOS allocation tool used for all chronic liver disease etiologies including primary biliary cholangitis.

Question 128: A heart transplant recipient reports feeling increasingly isolated and anxious 6 months post-transplant. What is the most appropriate coordinator response?

Increase immunosuppressant dosing to address mood symptoms
Screen for depression and anxiety, and refer to transplant psychosocial support services (Correct answer)
Reassure the patient that anxiety is normal and requires no intervention
Recommend the patient stop attending follow-up appointments until feeling better

Correct answer: Screen for depression and anxiety, and refer to transplant psychosocial support services

Post-transplant depression and anxiety are common and undertreated; the coordinator should screen formally and facilitate referral to psychology or psychiatry.

Question 129: A potential living kidney donor has a BMI of 36. According to most transplant center guidelines, what is the recommended approach?

Weight loss counseling with reassessment after achieving a lower BMI (Correct answer)
Proceed with donation as BMI is not a significant risk factor
Refer for bariatric surgery prior to evaluation
Automatic exclusion as all centers require BMI under 30

Correct answer: Weight loss counseling with reassessment after achieving a lower BMI

Obesity increases surgical and long-term renal risk; most centers counsel weight loss and reassess rather than applying automatic exclusion.

Question 130: What is the primary goal of recipient HLA typing performed during pre-transplant evaluation?

To screen for genetic diseases that may recur after transplant
To calculate the patient's MELD score
To identify the recipient's HLA antigens for crossmatch testing and identifying unacceptable antigens (Correct answer)
To determine ABO blood type compatibility

Correct answer: To identify the recipient's HLA antigens for crossmatch testing and identifying unacceptable antigens

HLA typing defines the recipient's antigen profile, enabling crossmatch testing against potential donors and identification of donor-specific antibodies to avoid.

Question 131: When BK viremia is detected on surveillance in a kidney transplant recipient, the standard first intervention is:

Reducing immunosuppression, typically by decreasing mycophenolate dose (Correct answer)
Adding antiviral therapy with ganciclovir
Initiating empiric antibiotics
Performing an immediate kidney biopsy without any other change

Correct answer: Reducing immunosuppression, typically by decreasing mycophenolate dose

Reduction of immunosuppression — most commonly decreasing or stopping mycophenolate — is the primary treatment for BK viremia to allow the immune system to control viral replication.

Question 132: When documenting a deceased donor's medical and social history, which source is considered the most reliable for regulatory purposes?

Family-reported verbal history
Coroner or medical examiner report
Primary care physician records
Electronic health records from the donor's treating hospital (Correct answer)

Correct answer: Electronic health records from the donor's treating hospital

Electronic health records from the treating hospital are the most verifiable and regulatory-compliant documentation source because they contain authenticated clinical data.

Question 133: A liver transplant patient develops a sudden decrease in bile output from the T-tube on postoperative day 1. What should the transplant coordinator suspect first?

Hepatic artery thrombosis (Correct answer)
Normal physiologic response
Acute cellular rejection
Biliary anastomotic leak

Correct answer: Hepatic artery thrombosis

Hepatic artery thrombosis causes sudden cessation of bile production and is the most feared early complication after liver transplant.

Question 134: An OPO coordinator is evaluating a donor at a small rural hospital. The ICU nurse privately expresses doubt that the family fully understood the brain death explanation. What should the coordinator do?

Request that the treating physician repeat the brain death explanation with the coordinator present to verify family understanding (Correct answer)
Arrange a separate family meeting to re-obtain consent independently from the hospital team
Proceed if the consent form is signed, as documentation is sufficient
Contact the hospital administrator to document the nurse's concern formally

Correct answer: Request that the treating physician repeat the brain death explanation with the coordinator present to verify family understanding

Ensuring genuine informed consent requires verifying that the family truly understood brain death, warranting a repeated collaborative explanation.

Question 135: Post-transplant osteoporosis is MOST commonly caused by long-term use of which immunosuppressive drug class?

mTOR inhibitors
Corticosteroids (Correct answer)
Calcineurin inhibitors
Mycophenolate derivatives

Correct answer: Corticosteroids

Corticosteroids are the primary driver of post-transplant bone loss through inhibition of osteoblast function and increased calcium excretion.

Question 136: A heart transplant recipient at 14 months post-transplant is evaluated for nonadherence. Chart review reveals two missed immunosuppressant doses per week on average over the past two months, confirmed by pharmacy refill records and tacrolimus trough variability. During the psychosocial interview, the patient reports he stopped a dose whenever he 'felt good' to avoid side effects. Which psychosocial intervention has the strongest evidence base for this specific nonadherence pattern in solid organ transplant recipients?

Referral to peer support groups only, as social reinforcement is the primary driver of medication adherence
Structured motivational interviewing combined with a simplified dosing regimen and electronic medication monitoring (Correct answer)
Immediate inpatient psychiatric hospitalization for medication compliance stabilization
Written adherence contracts co-signed by the patient and the transplant coordinator

Correct answer: Structured motivational interviewing combined with a simplified dosing regimen and electronic medication monitoring

Intentional, belief-driven nonadherence (stopping medication when 'feeling well') is best addressed through motivational interviewing (MI), which explores ambivalence and builds intrinsic motivation. Combined with regimen simplification (e.g., once-daily tacrolimus formulations) and electronic adherence monitoring (e.g., MEMS caps or smart pill bottles with data feedback), this approach has demonstrated efficacy in transplant populations. Hospitalization is not indicated for stable outpatient nonadherence. Written contracts alone have weak evidence without accompanying counseling. Peer support is valuable adjunctively but lacks sufficient standalone evidence for this pattern.

Question 137: A living kidney donor candidate completed donation 6 years ago. Her sister now needs a second transplant after graft failure, and the original donor wishes to donate her remaining kidney to a paired exchange program to benefit her sister indirectly. Which ethical and medical principle MOST definitively precludes this arrangement?

The donor's reduced GFR following prior nephrectomy will fail minimum threshold requirements for paired exchange programs
A prior living kidney donor is absolutely excluded from repeat kidney donation; donating the solitary remaining kidney is never permissible as it would render the donor anephric (Correct answer)
Federal regulations under NOTA prohibit directed paired exchange donations intended to benefit a specific recipient
Paired exchange participation requires the donor-recipient pair to be biologically incompatible, which cannot be verified post-prior-donation

Correct answer: A prior living kidney donor is absolutely excluded from repeat kidney donation; donating the solitary remaining kidney is never permissible as it would render the donor anephric

Donating a solitary kidney — the only remaining kidney after a prior nephrectomy — is absolutely contraindicated because it would leave the donor with no renal function, requiring immediate dialysis or transplant themselves. This is the fundamental ethical and physiological barrier: the transplant community's prime directive is to do no harm to the donor. This prohibition is inviolable regardless of the motivation, program structure, or regulatory framework. The other options describe real considerations but none constitute the definitive, non-negotiable barrier that rendering a living person anephric represents.

Question 138: In the immediate postoperative period after heart transplant, pulmonary hypertension in the recipient increases the risk of which complication?

Acute cellular rejection
Primary graft dysfunction of the lungs
Left ventricular failure of the donor heart
Right ventricular failure of the donor heart (Correct answer)

Correct answer: Right ventricular failure of the donor heart

The donor right ventricle is unaccustomed to high pulmonary pressures in the recipient and can fail acutely when exposed to pre-existing pulmonary hypertension.

Question 139: Under the continuous distribution framework being implemented by OPTN, how will organ allocation fundamentally change?

A composite score will replace tiered geographic and status-based priority systems (Correct answer)
Allocation will be determined entirely by waiting time without clinical factors
Donor hospitals will rank candidates directly rather than using a central system
Each organ type will have its own independent governing committee

Correct answer: A composite score will replace tiered geographic and status-based priority systems

Continuous distribution uses a single composite score incorporating medical urgency, candidate biology, transplant benefit, and logistics to rank all candidates on one continuous list.

Question 140: A transplant coordinator receives a kidney offer for a highly sensitized candidate with a PRA of 98%. What is the most critical pre-acceptance step?

Review of the candidate's social support documentation
Assessment of the donor's KDPI score only
Confirmation of the candidate's insurance authorization
Virtual or prospective crossmatch to assess compatibility (Correct answer)

Correct answer: Virtual or prospective crossmatch to assess compatibility

For highly sensitized candidates, a virtual crossmatch using donor HLA typing and recipient antibody profile is essential before acceptance to avoid hyperacute rejection.

Question 141: What is the maximum recommended cold ischemia time for a transplanted kidney to minimize delayed graft function?

24 hours (Correct answer)
12 hours
36 hours
18 hours

Correct answer: 24 hours

Kidney cold ischemia time should ideally be kept under 24 hours to reduce the risk of delayed graft function.

Question 142: When teaching a heart transplant patient about infection prevention, which activity should be highlighted as highest risk in the early post-transplant period?

Eating home-cooked meals
Gardening with gloves
Walking indoors with family
Attending crowded public events such as concerts (Correct answer)

Correct answer: Attending crowded public events such as concerts

Crowded public venues expose immunosuppressed patients to numerous airborne and contact pathogens during peak vulnerability.

Question 143: Under UNOS policy, what is the maximum allowable cold ischemia time for a standard criteria deceased donor kidney before it must be reported as a deviation?

48 hours
Cold ischemia time alone does not trigger a mandatory deviation report (Correct answer)
24 hours
36 hours

Correct answer: Cold ischemia time alone does not trigger a mandatory deviation report

Cold ischemia time alone does not automatically trigger a UNOS deviation report; the OPTN requires reporting of patient safety events and policy non-compliance, not specific CIT thresholds.

Question 144: During evaluation of a donation after circulatory death (DCD) Category III (Maastricht) pancreas, the procurement surgeon notes warm ischemia time of 28 minutes. Which factor MOST critically determines whether this pancreas should be accepted for simultaneous pancreas-kidney (SPK) transplant?

Recipient panel reactive antibody (PRA) level below 20% to minimize rejection risk with the marginal organ
Cold ischemia time remaining budget after transport, with a target total ischemia under 12 hours
Absolute contraindication — DCD pancreata are never suitable for SPK due to exocrine dysfunction risk
Donor BMI below 30 kg/m² and absence of significant peripancreatic fat necrosis on inspection (Correct answer)

Correct answer: Donor BMI below 30 kg/m² and absence of significant peripancreatic fat necrosis on inspection

DCD pancreas transplantation is performed at select high-volume centers. With a 28-minute warm ischemia time (within the generally accepted ≤30-minute threshold), the key procurement-side determinants are donor BMI (<30 preferred), and direct visual inspection for fat necrosis or edema — signs of ischemic pancreatitis that preclude use. DCD pancreata are NOT absolutely contraindicated; outcomes at experienced centers are comparable to DBD when selection criteria are met. Recipient PRA and cold ischemia are relevant but secondary to the organ quality inspection at procurement.

Question 145: A liver transplant recipient's adult child insists on being present during all post-transplant education sessions and frequently answers questions on behalf of the patient. The patient appears passive and avoids eye contact when the family member is present. Which is the most appropriate initial intervention by the transplant coordinator?

Involve the social worker immediately and document family dysfunction in the medical record
Continue with joint sessions since family support improves post-transplant adherence
Schedule a separate one-on-one education session with the patient alone to assess understanding and autonomy (Correct answer)
Reinforce to the family member that the patient must respond independently during education

Correct answer: Schedule a separate one-on-one education session with the patient alone to assess understanding and autonomy

The patient's passive behavior and avoidance of eye contact may indicate coercion, fear, or dependence that undermines informed consent and self-management. The priority is to assess the patient's actual comprehension and autonomous understanding in a private setting before drawing conclusions or escalating. This protects patient autonomy while gathering more information. Directly confronting the family member or immediately involving social work without first assessing the patient alone is premature.

Question 146: A pediatric liver transplant patient, now 19 years old, is transitioning to adult transplant care. The transplant coordinator conducting the transition assessment finds that the patient's mother continues to manage all medications, appointments, and communication with the medical team, and the patient defers entirely to her mother during the interview. The patient denies any distress. Which is the GREATEST psychosocial risk this pattern poses in the adult transplant setting?

Risk of medical PTSD in the patient stemming from prolonged parentification by the mother during childhood illness
Risk of adherence collapse if the primary caregiver becomes unavailable, due to the patient's underdeveloped self-management skills (Correct answer)
Risk of graft-versus-host disease secondary to immunosuppression mismanagement by a non-medically trained caregiver
Risk of healthcare proxy disputes between the patient and her mother once she is legally an adult

Correct answer: Risk of adherence collapse if the primary caregiver becomes unavailable, due to the patient's underdeveloped self-management skills

The central concern in pediatric-to-adult transition is whether the patient has developed autonomous self-management capacity. When a caregiver has managed all aspects of care, the patient has not built the skills or self-efficacy needed to independently manage a complex immunosuppression regimen. If that caregiver becomes unavailable (illness, estrangement, death), adherence can collapse catastrophically. While proxy disputes are a real concern, they are secondary to the immediate functional risk of underdeveloped self-management.

Question 147: Which accreditation standard specifically addresses transplant program infection control practices related to donor-derived disease transmission?

AOPO Standards Section 7: Donor Testing and Disease Transmission
AABB Standards for Cellular Therapy
Joint Commission National Patient Safety Goal 7 (Correct answer)
FACT Standards for Hematopoietic Cellular Therapy

Correct answer: Joint Commission National Patient Safety Goal 7

Joint Commission NPSG 7 (Infection Prevention) applies to transplant programs and includes requirements for monitoring and preventing donor-derived infections.

Question 148: A liver transplant recipient is 18 hours post-reperfusion. Labs show AST 3,200 U/L, ALT 2,800 U/L, PT 28 seconds, and bile output from the T-tube is 5 mL over 12 hours. Doppler ultrasound demonstrates normal hepatic artery waveforms bilaterally. What is the MOST appropriate next diagnostic step?

Repeat Doppler in 6 hours, as early waveforms may not reflect true perfusion
CT angiography of the hepatic vasculature to rule out arterial steal syndrome (Correct answer)
Urgent re-exploration to assess portal vein flow and biliary anastomosis integrity
Liver biopsy to differentiate primary non-function from ischemia-reperfusion injury

Correct answer: CT angiography of the hepatic vasculature to rule out arterial steal syndrome

In the setting of elevated transaminases, poor bile output, and normal hepatic artery Doppler at the hilum, splenic artery steal syndrome must be excluded. The splenic artery can siphon flow from the hepatic artery despite normal proximal waveforms; CT angiography or selective angiography will detect the steal and guide embolization. Biopsy is premature before vascular causes are excluded. Repeating Doppler is inappropriate when clinical indicators suggest a time-sensitive problem. Re-exploration without first identifying the etiology is not the standard diagnostic algorithm at this stage.

Question 149: A transplant coordinator is caring for a ventilator-dependent patient who meets neurological criteria for brain death determination, but the patient's advance directive requests 'all measures to sustain life' and the family is insisting on continued aggressive treatment. The attending physician has completed two brain death examinations per hospital protocol. What is the MOST ethically and legally defensible position for the coordinator?

Transfer care to a facility willing to honor the advance directive before initiating any donation conversation
Recognize that a legally valid brain death declaration renders the patient legally dead, at which point the advance directive and family's treatment preferences no longer govern medical decision-making (Correct answer)
Defer brain death declaration indefinitely because the advance directive constitutes a binding legal refusal of withdrawal
Offer the family a 72-hour 'grace period' of continued ventilation before initiating donation discussions, as required by CMS Conditions of Participation

Correct answer: Recognize that a legally valid brain death declaration renders the patient legally dead, at which point the advance directive and family's treatment preferences no longer govern medical decision-making

Brain death constitutes legal death in all 50 U.S. states under the Uniform Determination of Death Act (UDDA). Once death is legally declared following established clinical criteria, the patient is dead — the advance directive (which governs treatment of a living patient) no longer applies, and the family cannot legally demand continued 'treatment' of a deceased person. Coordinators and physicians are not obligated to provide ventilator support as a medical intervention on a deceased person, though sensitivity and communication with the family remain paramount. CMS does not mandate a 72-hour grace period — it requires timely notification of the OPO, not a delay in death declaration.

Question 150: A 58-year-old male with end-stage renal disease is undergoing evaluation for kidney transplantation. Which of the following is considered an absolute contraindication to proceeding with the transplant?

A body mass index (BMI) of 38 kg/m²
A previous history of medication non-adherence
An active, untreated malignancy (Correct answer)
A history of well-controlled hypertension

Correct answer: An active, untreated malignancy

An active, untreated malignancy is an absolute contraindication for kidney transplantation. The required immunosuppressive therapy following transplant could accelerate cancer recurrence or metastasis. Other absolute contraindications include severe cardiac or pulmonary disease making surgery intolerable, active infection, and uncontrolled psychiatric disease. Morbid obesity, hypertension, and a history of non-adherence are typically considered relative contraindications that require management and careful consideration.

Question 151: A post-liver transplant patient on tacrolimus and trimethoprim-sulfamethoxazole (TMP-SMX) for PCP prophylaxis calls reporting a potassium level of 6.2 mEq/L on his home lab result. He feels well. Which educational response is MOST appropriate?

Explain that both tacrolimus and TMP-SMX independently cause hyperkalemia through different mechanisms, and he should be evaluated urgently given the additive risk and cardiac implications (Correct answer)
Reassure him that mild hyperkalemia is expected with tacrolimus and advise him to reduce dietary potassium until his next clinic visit in two weeks
Advise him to take sodium polystyrene sulfonate (Kayexalate) from his medication cabinet and that this can be managed at home without clinic evaluation
Instruct him to stop TMP-SMX immediately on his own, as it is the sole cause, and recheck potassium in one week

Correct answer: Explain that both tacrolimus and TMP-SMX independently cause hyperkalemia through different mechanisms, and he should be evaluated urgently given the additive risk and cardiac implications

Hyperkalemia at 6.2 mEq/L is clinically significant and requires urgent evaluation — not telephone reassurance. Tacrolimus causes hyperkalemia via impaired tubular potassium secretion (type IV RTA mechanism), and TMP-SMX blocks the epithelial sodium channel (ENaC) in the distal nephron, further reducing potassium excretion. The combination creates additive hyperkalemia risk. At 6.2 mEq/L, cardiac arrhythmia risk is real even in asymptomatic patients. Self-discontinuing TMP-SMX without physician guidance could expose the patient to PCP, and self-administration of Kayexalate without evaluation is inappropriate.

Question 152: Which of the following statements is true regarding a transplant candidate's ability to be listed at multiple transplant centers?

A candidate's accrued waiting time from each center is added together to create a longer total waiting time.
Candidates can only be listed at multiple centers if they are in different UNOS regions.
It is prohibited by OPTN policy to prevent an unfair advantage.
OPTN policy allows candidates to be listed at more than one transplant center, and they may transfer their primary accrued waiting time between centers. (Correct answer)

Correct answer: OPTN policy allows candidates to be listed at more than one transplant center, and they may transfer their primary accrued waiting time between centers.

OPTN policy permits multiple listing, allowing candidates to be registered on the waitlist at two or more transplant centers. A candidate can also request to transfer their primary waiting time from one center to another, but they cannot combine or add waiting times from different listings.

Question 153: A heart transplant recipient on mycophenolate mofetil (MMF) calls to report profuse, watery diarrhea for 3 days. She has been self-managing with loperamide and herbal antidiarrheal teas. What is the MOST important education point to address first?

Explain that persistent diarrhea can alter MMF absorption and expose her to opportunistic infections like CMV colitis, and she must be evaluated promptly (Correct answer)
Reassure her that MMF-related diarrhea is common and self-limited; advise her to continue loperamide and increase oral fluid intake
Instruct her to halve her MMF dose temporarily until diarrhea resolves, then resume the full dose when stool normalizes
Advise her to switch to mycophenolate sodium (Myfortic) immediately, as it has an enteric coating that prevents GI side effects entirely

Correct answer: Explain that persistent diarrhea can alter MMF absorption and expose her to opportunistic infections like CMV colitis, and she must be evaluated promptly

Persistent diarrhea in a transplant recipient warrants urgent evaluation for several reasons: (1) it can impair MMF absorption, potentially causing sub-therapeutic immunosuppression; (2) diarrhea itself may be caused by CMV colitis, a serious opportunistic infection requiring antiviral therapy; (3) dehydration can precipitate calcineurin inhibitor nephrotoxicity. Self-medicating with herbal teas introduces unknown drug interactions. Patients should never self-adjust immunosuppression doses, and Myfortic reduces but does not eliminate GI side effects.

Question 154: A transplant coordinator notes that a candidate's calculated GFR has been declining during the waitlist period. What action is most appropriate?

Notify the transplant physician and update the candidate's status to reflect current kidney function (Correct answer)
No action is needed until the patient requires dialysis
Immediately activate the patient as Status 1A
Remove the patient from the waitlist until GFR stabilizes

Correct answer: Notify the transplant physician and update the candidate's status to reflect current kidney function

Declining GFR during the waitlist period must be communicated to the transplant team to reassess status and potentially update MELD/waitlist priority.

Question 155: A transplant center lists a patient with advanced hepatocellular carcinoma who meets Milan criteria on initial imaging. Eighteen months later, restaging imaging shows the patient has exceeded Milan criteria, but the listing physician documents a 'downstaging response' to locoregional therapy and requests MELD exception points be maintained. The coordinator reviews the imaging report and notes the radiologist's read does not support downstaging. Under OPTN policy, what is the coordinator's primary obligation?

Remove the patient from the waiting list immediately pending clarification, as maintaining a listing with inaccurate exception criteria constitutes fraud under federal law
Proactively contact the regional review board to report the discrepancy, bypassing the listing physician to ensure regulatory compliance
Defer entirely to the listing physician's clinical judgment, as the coordinator's role is administrative and the physician bears full medical and legal responsibility for exception point requests
Ensure the accurate radiology report and the discrepancy with the physician's documentation are transparently reflected in the UNOS exception request submission, and escalate internally if the submission appears to misrepresent the patient's status (Correct answer)

Correct answer: Ensure the accurate radiology report and the discrepancy with the physician's documentation are transparently reflected in the UNOS exception request submission, and escalate internally if the submission appears to misrepresent the patient's status

OPTN policy requires that exception point requests accurately reflect the patient's clinical status. The transplant coordinator, as the individual who often compiles and submits this documentation, shares responsibility for the accuracy of UNOS submissions. When a discrepancy exists between imaging and physician documentation, the coordinator must ensure accurate data is included in the submission and escalate internally through appropriate channels (e.g., transplant program leadership, compliance). Bypassing the physician directly to the review board is premature without internal escalation. Unilaterally removing the patient is outside the coordinator's authority. Deferring completely ignores the coordinator's professional and regulatory accountability.

Question 156: A heart transplant candidate has well-controlled bipolar disorder managed with lithium. The psychosocial evaluator's MOST appropriate recommendation is to:

Deny listing because psychiatric medications are contraindicated with immunosuppressants
Require the patient to discontinue lithium before listing
List the patient with a psychiatric monitoring plan given demonstrated stability and medication adherence (Correct answer)
Defer the decision indefinitely pending a longer observation period

Correct answer: List the patient with a psychiatric monitoring plan given demonstrated stability and medication adherence

Controlled psychiatric illness with demonstrated medication adherence is not a contraindication to transplant; a psychiatric monitoring plan supports safe post-transplant management.

Question 157: A transplant coordinator notices a patient seems anxious and withdrawn during education sessions. What is the most appropriate action?

Provide written materials only and avoid further verbal instruction
Continue standard education and document poor compliance
Reschedule education until the patient appears ready
Assess for psychological distress and refer to transplant social worker or psychologist (Correct answer)

Correct answer: Assess for psychological distress and refer to transplant social worker or psychologist

Psychological distress is common post-transplant and should be assessed and addressed through appropriate mental health referrals to support adherence.

Question 158: During pre-transplant evaluation for a simultaneous liver-kidney (SLK) transplant, the team is deliberating whether a patient with acute kidney injury superimposed on chronic kidney disease meets UNOS criteria for SLK listing. The patient's eGFR has been 28 mL/min at baseline (CKD Stage 3b) with a recent nadir of 14 mL/min during hepatorenal syndrome type 1. Which criterion is MOST critical in determining SLK eligibility under current UNOS policy?

A single eGFR measurement below 30 mL/min taken during the index hospitalization for hepatorenal syndrome
Sustained reduction in kidney function defined as eGFR ≤60 mL/min for ≥90 consecutive days, or eGFR ≤30 mL/min at time of liver transplant evaluation, or ESRD on dialysis (Correct answer)
Kidney biopsy demonstrating greater than 30% glomerulosclerosis as a prerequisite for all SLK listings
Any episode of acute kidney injury requiring dialysis for more than 6 weeks regardless of baseline kidney function

Correct answer: Sustained reduction in kidney function defined as eGFR ≤60 mL/min for ≥90 consecutive days, or eGFR ≤30 mL/min at time of liver transplant evaluation, or ESRD on dialysis

UNOS's 2017 SLK allocation policy established medical eligibility criteria requiring: eGFR ≤60 mL/min for ≥90 days, OR eGFR ≤30 mL/min at evaluation, OR ESRD (on dialysis ≥90 days). Transient AKI during HRS, even requiring short-term dialysis, does not automatically qualify a patient for SLK without meeting sustained chronicity criteria. A biopsy is not mandated by policy, though it may inform clinical decision-making. The 90-day sustained dysfunction requirement protects kidneys for patients with true ESRD.

Question 159: A family member asks if they should notify the transplant center if the patient has been exposed to chickenpox. Why is this important?

Chickenpox exposure is only dangerous in pediatric transplant recipients
Chickenpox exposure means the patient must stop immunosuppression immediately
Chickenpox accelerates immunosuppressant metabolism
Varicella can cause severe disseminated infection in immunocompromised transplant recipients requiring prophylactic treatment (Correct answer)

Correct answer: Varicella can cause severe disseminated infection in immunocompromised transplant recipients requiring prophylactic treatment

Immunosuppressed transplant patients are at risk for life-threatening disseminated varicella, and post-exposure prophylaxis with VZIG or antivirals may be needed.

Question 160: BK virus nephropathy in kidney transplant recipients is best managed initially by:

Reducing overall immunosuppression (Correct answer)
Pulse dose corticosteroids
Switching from tacrolimus to cyclosporine
Adding antiviral therapy with ganciclovir

Correct answer: Reducing overall immunosuppression

The primary treatment for BK nephropathy is reduction of immunosuppression to allow immune reconstitution and viral clearance; no antiviral has proven efficacy.

Question 161: Which of the following immunosuppressive agents is a monoclonal antibody that functions by blocking the CD25 subunit of the IL-2 receptor on activated T-lymphocytes, thereby preventing their proliferation?

Basiliximab (Correct answer)
Rituximab
Antithymocyte Globulin
Alemtuzumab

Correct answer: Basiliximab

Basiliximab is an IL-2 receptor antagonist. It specifically binds to the CD25 alpha chain of the IL-2 receptor on activated T-cells, which competitively inhibits IL-2 mediated T-cell activation and proliferation. Antithymocyte Globulin is a polyclonal antibody that depletes T-cells. Rituximab targets CD20 on B-cells, and Alemtuzumab targets CD52 on both T- and B-lymphocytes.

Question 162: What is the significance of pink or red-tinged drain output following a liver transplant in the immediate postoperative period?

Sign of normal fluid third-spacing
Indication of early rejection
Possible arterial or venous bleeding requiring immediate assessment (Correct answer)
Expected normal bile drainage

Correct answer: Possible arterial or venous bleeding requiring immediate assessment

Bloody drain output suggests intraabdominal hemorrhage, which is a surgical emergency requiring urgent evaluation and possible re-exploration.

Question 163: When does the UNOS Living Donor Follow-Up policy require transplant centers to collect and submit follow-up data on living donors?

At discharge only
Annually for the donor's lifetime
At 6 months only
At 6 months, 1 year, and 2 years post-donation (Correct answer)

Correct answer: At 6 months, 1 year, and 2 years post-donation

UNOS/OPTN policy mandates follow-up data collection at 6 months, 1 year, and 2 years post-donation to monitor donor outcomes.

Question 164: A kidney transplant recipient, 6 hours postoperative, experiences a sudden decrease in urine output from 150 mL/hr to less than 20 mL/hr. The patient's blood pressure and central venous pressure are stable. What is the MOST appropriate initial action for the transplant coordinator to anticipate?

Administration of an intravenous fluid bolus.
Obtaining an urgent renal ultrasound with Doppler. (Correct answer)
Sending a urine sample for culture and sensitivity.
Preparing for emergent hemodialysis.

Correct answer: Obtaining an urgent renal ultrasound with Doppler.

A sudden drop in urine output in a patient with stable hemodynamics is highly suspicious for a vascular or urological emergency. An urgent renal ultrasound with Doppler is the most critical first step to rule out renal artery or vein thrombosis, or a ureteral obstruction, which would require immediate surgical intervention. While fluid status is important, stable CVP makes severe hypovolemia less likely. Infection is unlikely to cause such an abrupt change this early, and dialysis would only be considered after a cause for the oliguria is determined.

Question 165: Which organization maintains the national deceased donor organ allocation system in the United States?

Centers for Medicare & Medicaid Services (CMS)
Advisory Committee on Organ Transplantation (ACOT)
Association of Organ Procurement Organizations (AOPO)
United Network for Organ Sharing (UNOS) (Correct answer)

Correct answer: United Network for Organ Sharing (UNOS)

UNOS operates the OPTN (Organ Procurement and Transplantation Network) under federal contract with HRSA and manages national organ allocation policies and waiting lists.

Question 166: When assessing pain in an immediate post-transplant patient who cannot self-report, which validated tool is most appropriate?

Numeric Rating Scale (NRS 0-10)
Wong-Baker FACES scale
Visual Analog Scale (VAS)
Behavioral Pain Scale (BPS) or CPOT (Correct answer)

Correct answer: Behavioral Pain Scale (BPS) or CPOT

The Behavioral Pain Scale (BPS) and Critical Care Pain Observation Tool (CPOT) are validated for assessing pain in non-verbal ICU patients based on behavioral indicators.

Question 167: Which immunosuppression medication requires therapeutic drug monitoring via trough levels and is nephrotoxic in kidney transplant recipients?

Prednisone
Tacrolimus (Correct answer)
Mycophenolate mofetil
Azathioprine

Correct answer: Tacrolimus

Tacrolimus is a calcineurin inhibitor requiring trough level monitoring due to its narrow therapeutic window and significant nephrotoxicity.

Question 168: What is the significance of donor-specific antibodies (DSA) detected de novo after kidney transplantation?

They only develop in ABO-incompatible transplants
They indicate successful tolerance induction
They are a strong predictor of antibody-mediated rejection and graft loss (Correct answer)
They have no clinical significance

Correct answer: They are a strong predictor of antibody-mediated rejection and graft loss

De novo DSA are antibodies the recipient develops against donor HLA antigens post-transplant and are strongly associated with antibody-mediated rejection and decreased long-term graft survival.

Question 169: A transplant candidate on the kidney waiting list presents to the emergency department of a hospital where they are not listed, complaining of fever and shortness of breath. Under the Emergency Medical Treatment and Active Labor Act (EMTALA), what is the hospital's primary obligation?

To contact the patient's transplant coordinator to get permission to treat.
To provide a medical screening examination and necessary stabilizing treatment. (Correct answer)
To immediately transfer the patient back to their listing transplant center.
To refuse treatment because the patient is not on their transplant waitlist.

Correct answer: To provide a medical screening examination and necessary stabilizing treatment.

EMTALA requires any Medicare-participating hospital with an emergency department to provide a medical screening examination (MSE) to any individual seeking emergency care to determine if an emergency medical condition exists. If an emergency condition is found, the hospital must provide stabilizing treatment within its capabilities, regardless of the patient's ability to pay or their transplant listing status. A transfer should only be considered after these steps are taken.

Question 170: A renal transplant recipient on long-term prednisone and tacrolimus develops painful vesicular lesions in a dermatomal distribution on the trunk 14 months post-transplant. Which antiviral regimen is most appropriate?

Famciclovir 500 mg twice daily for 3 days
Valacyclovir 1000 mg three times daily for 7 days (Correct answer)
Acyclovir 200 mg five times daily for 5 days
Ganciclovir 5 mg/kg IV twice daily for 14 days

Correct answer: Valacyclovir 1000 mg three times daily for 7 days

Herpes zoster (shingles) in immunocompromised transplant recipients requires high-dose valacyclovir 1000 mg TID for 7 days to achieve adequate antiviral tissue levels and reduce the risk of dissemination.

Question 171: During multi-organ procurement, the procurement surgeon performs an in situ aortic flush with University of Wisconsin (UW) solution simultaneously with a portal venous flush. Which component of UW solution is primarily responsible for preventing cellular swelling during cold preservation?

Adenosine, which provides substrate for ATP resynthesis on reperfusion
Hydroxyethyl starch, which maintains colloid oncotic pressure in the interstitium
Lactobionate and raffinose, which are impermeant anions that reduce osmotic cellular edema (Correct answer)
Glutathione, by scavenging reactive oxygen species generated during ischemia

Correct answer: Lactobionate and raffinose, which are impermeant anions that reduce osmotic cellular edema

Lactobionate and raffinose are large, impermeant anions in UW solution that cannot cross the cell membrane. Their high molecular weight prevents them from being osmotically active intracellularly, thereby counteracting the osmotic gradient that causes cell swelling during cold ischemia when Na/K-ATPase activity is suppressed. Hydroxyethyl starch addresses interstitial edema, glutathione provides antioxidant protection, and adenosine supports energy metabolism — but the primary anti-swelling mechanism is the impermeant anion strategy.

Question 172: A kidney-pancreas transplant candidate is listed as a simultaneous pancreas-kidney (SPK) candidate. The center receives a pancreas offer from a donor with a BMI of 29 and amylase 3× the upper limit of normal, but lipase within normal limits. The procurement team reports mild edema of the pancreatic head on visual inspection. The CCTC coordinating the case must advise the transplant surgeon. Which factor, in isolation, is generally considered the strongest contraindication to pancreas procurement from this donor?

Isolated mild edema of the pancreatic head on visual inspection without biochemical or histological correlation
Donor BMI of 29, which exceeds the preferred threshold of 28 and independently predicts primary non-function
Donor age over 45 combined with cold ischemia time anticipated to exceed 12 hours (Correct answer)
Amylase elevation to 3× ULN in the absence of lipase elevation or traumatic injury history

Correct answer: Donor age over 45 combined with cold ischemia time anticipated to exceed 12 hours

Pancreas procurement quality is multifactorial. Donor BMI of 29 is borderline but not an absolute contraindication (many programs accept up to BMI 30–32 with good outcomes). Amylase elevation alone is poorly specific for pancreatic injury — isolated hyperamylasemia without lipase elevation often reflects salivary amylase or stress response and is not independently predictive of graft failure. Mild pancreatic head edema on visual inspection is common with volume resuscitation and not independently disqualifying. However, donor age >45 combined with prolonged cold ischemia (>12 hours) represents compounding risk factors strongly associated with primary graft non-function and early graft loss — together they are the most significant concern for pancreas viability in this scenario.

Question 173: Under OPTN policy, what is the maximum time a transplant program has to respond to an organ offer before the offer is considered declined?

30 minutes for all organ types
1 hour for kidneys and varies by organ type (Correct answer)
4 hours, standardized across all solid organs
2 hours for all organ types regardless of logistics

Correct answer: 1 hour for kidneys and varies by organ type

OPTN specifies organ-specific response windows; kidney programs typically have 1 hour to respond, while heart and lung programs have shorter windows given shorter viable ischemia times.

Question 174: Which finding on abdominal imaging would most concern the transplant team when evaluating a liver transplant candidate?

Small volume ascites responsive to diuretics
Portal vein thrombosis extending into the superior mesenteric vein (Correct answer)
Small gallstones without cholecystitis
Mild splenomegaly

Correct answer: Portal vein thrombosis extending into the superior mesenteric vein

Extensive portal vein thrombosis involving the superior mesenteric vein significantly complicates liver transplant surgery and may be a contraindication.

Question 175: Which prophylactic regimen is standard for Pneumocystis jirovecii pneumonia (PJP) prevention in solid organ transplant recipients?

Trimethoprim-sulfamethoxazole (TMP-SMX) for at least 6–12 months post-transplant (Correct answer)
Oral fluconazole for 6 months
Inhaled pentamidine monthly for life
Voriconazole for 3 months

Correct answer: Trimethoprim-sulfamethoxazole (TMP-SMX) for at least 6–12 months post-transplant

TMP-SMX is the preferred PJP prophylaxis agent due to its efficacy, low cost, and additional coverage against other opportunistic pathogens.

Certified Clinical Transplant Coordinator (CCTC)

The CCTC exam, administered by the American Board for Transplant Certification (ABTC), validates the clinical knowledge and competency of transplant coordinators involved in vascular organ transplantation including kidney, liver, heart, lung, pancreas, and intestine.

175

Questions

180 min

Time Limit

70%

To Pass

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