Certified Clinical Transplant Nurse (CCTN) — Questions and Answers

Question 1: A nurse works in a neighborhood recently hit by a hurricane. The nurse works to connect persons in need with housing and counseling. The nurse represents which degree of prevention.

Primary level
Tertiary level (Correct answer)
Primary and secondary levels
Secondary level

Correct answer: Tertiary level

Tertiary prevention focuses on rehabilitation, reducing the impact of an existing disease or injury, and preventing its progression. In this scenario, the hurricane has already occurred, and the nurse is providing housing and counseling, which are restorative and supportive services aimed at minimizing long-term effects and helping individuals recover, thus aligning with tertiary prevention.

Question 2: During a living donor kidney evaluation, the potential donor is found to have a glomerular filtration rate (GFR) of 72 mL/min/1.73 m². The transplant team should:

Decline the donor; GFR must be >80 mL/min for donation
Evaluate further with a 24-hour urine collection and repeat measurement (Correct answer)
Proceed with donation since GFR >60 mL/min is acceptable
Immediately approve donation as the GFR is within normal limits

Correct answer: Evaluate further with a 24-hour urine collection and repeat measurement

A borderline GFR requires further evaluation including 24-hour urine for creatinine clearance and protein to ensure safe residual function post-donation.

Question 3: A transplant recipient reports that their partner feels their life revolves entirely around the transplant. Which approach best addresses this psychosocial concern?

Document the concern without intervention
Advise the partner to accept the situation without complaint
Refer the couple to transplant-specific counseling or support groups to address caregiver burden (Correct answer)
Advise the patient to minimize medical appointments to reduce burden on the partner

Correct answer: Refer the couple to transplant-specific counseling or support groups to address caregiver burden

Caregiver burden is a recognized psychosocial issue in transplantation; referral to transplant-specific counseling or support groups addresses both patient and caregiver needs.

Question 4: A pancreas transplant recipient's fasting blood glucose rises from 90 to 210 mg/dL on post-operative day 14. What should the nurse suspect FIRST?

Dietary non-compliance
Graft rejection or thrombosis (Correct answer)
Steroid-induced hyperglycemia from recent pulse dose
Normal post-operative stress response

Correct answer: Graft rejection or thrombosis

A sudden rise in glucose in a pancreas transplant recipient signals potential graft rejection or vascular thrombosis, both of which impair insulin secretion and require immediate investigation.

Question 5: Regulatory T cells (Tregs) play what role in transplant immunology?

They suppress immune responses and may promote graft tolerance (Correct answer)
They produce donor-specific antibodies
They activate the complement cascade
They promote rejection by activating cytotoxic T cells

Correct answer: They suppress immune responses and may promote graft tolerance

Regulatory T cells suppress immune responses against the graft and are being studied as a means to promote tolerance and reduce rejection.

Question 6: A renal transplant recipient who is 3 years post-transplant presents with gradually rising creatinine, proteinuria, and hypertension without episodes of acute rejection. Biopsy shows interstitial fibrosis and tubular atrophy. This pattern is MOST consistent with:

Acute antibody-mediated rejection
BK virus nephropathy
Chronic allograft nephropathy (interstitial fibrosis/tubular atrophy) (Correct answer)
Recurrent primary disease

Correct answer: Chronic allograft nephropathy (interstitial fibrosis/tubular atrophy)

Interstitial fibrosis and tubular atrophy (IF/TA) is the histologic hallmark of chronic allograft nephropathy, the leading cause of late graft loss.

Question 7: A pancreas transplant recipient develops hyperglycemia 1 week post-transplant. What is the most urgent complication to rule out?

Dietary non-compliance
Tacrolimus-induced diabetes
Steroid-induced hyperglycemia
Pancreatic graft thrombosis (Correct answer)

Correct answer: Pancreatic graft thrombosis

Pancreatic graft thrombosis is the most common cause of early pancreas graft loss and presents with sudden hyperglycemia — vascular imaging is urgently required.

Question 8: What is the most common reason for graft loss in long-term kidney transplant recipients related to patient behavior?

Non-adherence to immunosuppressive medications (Correct answer)
Excessive exercise damaging the graft
Failure to attend annual follow-up appointments
Dietary non-compliance causing metabolic syndrome

Correct answer: Non-adherence to immunosuppressive medications

Non-adherence to immunosuppressive medications is the leading preventable cause of late graft loss, often resulting in chronic rejection.

Question 9: Cytomegalovirus (CMV) infection in transplant recipients is most severe in which donor-recipient combination?

CMV donor positive / recipient negative (D+/R-) (Correct answer)
CMV donor negative / recipient negative (D-/R-)
CMV donor positive / recipient positive (D+/R+)
CMV donor negative / recipient positive (D-/R+)

Correct answer: CMV donor positive / recipient negative (D+/R-)

The D+/R- combination carries the highest CMV risk because the recipient has no prior immunity against primary CMV infection transmitted from the seropositive donor.

Question 10: A kidney transplant recipient on tacrolimus develops a serum creatinine rise from 1.2 to 2.8 mg/dL on post-op day 5. The most appropriate next step is:

Increase tacrolimus dose immediately
Discontinue tacrolimus and switch to cyclosporine
Obtain a renal biopsy to differentiate rejection from tacrolimus nephrotoxicity (Correct answer)
Start high-dose IV methylprednisolone empirically

Correct answer: Obtain a renal biopsy to differentiate rejection from tacrolimus nephrotoxicity

A renal biopsy is the gold standard to distinguish acute rejection from calcineurin inhibitor nephrotoxicity, as treatment differs significantly.

Question 11: A CMV-seronegative kidney recipient receives an organ from a CMV-seropositive donor (D+/R−). What is the standard prophylaxis approach?

Valganciclovir prophylaxis for 3–6 months post-transplant (Correct answer)
No prophylaxis needed; treat if symptoms arise
CMV hyperimmune globulin alone for 3 months
Ganciclovir IV for 2 weeks followed by monitoring only

Correct answer: Valganciclovir prophylaxis for 3–6 months post-transplant

D+/R− is the highest-risk CMV mismatch, and universal prophylaxis with valganciclovir for 3–6 months is the standard of care to prevent primary CMV disease.

Question 12: What is the primary mechanism by which trimethoprim-sulfamethoxazole provides prophylaxis against Toxoplasma gondii in transplant recipients?

It inhibits folate synthesis, which is essential for Toxoplasma replication (Correct answer)
It disrupts the parasite's cell membrane permeability
It blocks Toxoplasma entry into host macrophages
It stimulates innate immune recognition of the parasite

Correct answer: It inhibits folate synthesis, which is essential for Toxoplasma replication

TMP-SMX inhibits dihydrofolate reductase and dihydropteroate synthase, blocking folate synthesis required for Toxoplasma DNA replication, providing concurrent PCP and toxoplasma prophylaxis.

Question 13: Post-transplant lymphoproliferative disorder (PTLD) is most strongly associated with which viral infection?

Hepatitis C virus
BK polyomavirus
Epstein-Barr Virus (EBV) (Correct answer)
Cytomegalovirus (CMV)

Correct answer: Epstein-Barr Virus (EBV)

PTLD is most strongly associated with Epstein-Barr Virus (EBV), particularly in EBV-naive recipients receiving organs from EBV-seropositive donors.

Question 14: Which complement pathway is primarily activated in antibody-mediated rejection?

Alternative pathway
Classical pathway (Correct answer)
Terminal pathway only
Lectin pathway

Correct answer: Classical pathway

The classical complement pathway is activated when donor-specific antibodies bind to graft endothelium, initiating the complement cascade in antibody-mediated rejection.

Question 15: A lung transplant recipient reports new-onset dyspnea and a 10% decline in FEV1 at the 12-month clinic visit. Which condition should the transplant nurse suspect?

Pulmonary embolism
Chronic lung allograft dysfunction (CLAD)/BOS (Correct answer)
Pneumocystis jirovecii pneumonia
Acute cellular rejection

Correct answer: Chronic lung allograft dysfunction (CLAD)/BOS

A persistent decline in FEV1 beyond the early post-transplant period is the hallmark of bronchiolitis obliterans syndrome (BOS), the most common form of chronic lung allograft dysfunction.

Question 16: Chest tube drainage shouldn't go over a certain amount while assessing postoperative mediastinal hemorrhage.

400 mL in 6 hours
200 mL in 2 to 6 hours (Correct answer)
500 mL in 4 hours
300 mL in 1 to 3 hours

Correct answer: 200 mL in 2 to 6 hours

Postoperative mediastinal hemorrhage is a serious complication following cardiac surgery. While specific thresholds can vary, chest tube drainage exceeding 200 mL in 2 to 6 hours, or 100 mL/hour for several consecutive hours, is generally considered a significant amount that warrants immediate assessment and potential intervention to prevent further complications.

Question 17: Which of the following best describes 'hyperacute rejection' in solid organ transplantation?

T-cell mediated rejection occurring 5-7 days post-transplant
Pre-formed recipient antibodies cause graft thrombosis within minutes to hours of reperfusion (Correct answer)
Chronic fibrosis of the graft occurring years after transplant
NK cell-mediated rejection occurring in the first 24 hours

Correct answer: Pre-formed recipient antibodies cause graft thrombosis within minutes to hours of reperfusion

Hyperacute rejection is caused by pre-formed donor-specific antibodies that bind immediately upon reperfusion, activating complement and causing microvascular thrombosis.

Question 18: When educating a renal transplant recipient about food safety, which instruction is MOST important due to immunosuppression?

Consume only pasteurized dairy products and avoid raw shellfish (Correct answer)
Limit fluid intake to prevent graft hypertension
Avoid all raw fruits and vegetables permanently
Use separate cutting boards for raw meat and produce

Correct answer: Consume only pasteurized dairy products and avoid raw shellfish

Immunosuppressed transplant recipients are at high risk for Listeria and other foodborne pathogens, making avoidance of unpasteurized dairy and raw shellfish a critical safety measure.

Question 19: Which lifestyle modification is most important to counsel a transplant recipient about for long-term cardiovascular health?

Bed rest to protect the graft
Low-protein diet to reduce graft workload
Avoiding all physical activity for the first year
Smoking cessation, regular exercise, and blood pressure management (Correct answer)

Correct answer: Smoking cessation, regular exercise, and blood pressure management

Cardiovascular disease is the leading cause of death in transplant recipients, so smoking cessation, exercise, and BP management are paramount lifestyle counseling topics.

Question 20: Which opportunistic infection prophylaxis is standard for ALL solid organ transplant recipients in the first 3–6 months post-transplant?

Acyclovir for HSV only in seropositive donors
Fluconazole for Aspergillus
Isoniazid for all recipients regardless of TB status
Trimethoprim-sulfamethoxazole (TMP-SMX) for Pneumocystis jirovecii (Correct answer)

Correct answer: Trimethoprim-sulfamethoxazole (TMP-SMX) for Pneumocystis jirovecii

TMP-SMX is universally recommended for PCP prophylaxis in all solid organ transplant recipients during the high-immunosuppression period, and also provides coverage for Toxoplasma and Nocardia.

Question 21: A liver transplant recipient reports drinking alcohol occasionally. What is the most appropriate nursing response?

Advise the patient to limit to one drink per week
Moderate alcohol is acceptable after liver transplantation
Alcohol is absolutely contraindicated after liver transplantation due to risk of graft injury and recurrence of alcoholic liver disease (Correct answer)
Occasional alcohol is only concerning if liver enzymes are elevated

Correct answer: Alcohol is absolutely contraindicated after liver transplantation due to risk of graft injury and recurrence of alcoholic liver disease

Alcohol is contraindicated after liver transplantation because it can damage the graft and cause recurrence of alcoholic liver disease, threatening graft survival.

Question 22: Warm ischemia time in transplantation refers to which period?

Time the organ spends at room temperature during anastomosis
Time from organ cooling to transplantation
Time between brain death and family consent
Time from circulatory arrest to organ cooling in DCD, or from cross-clamp to reperfusion in DBD (Correct answer)

Correct answer: Time from circulatory arrest to organ cooling in DCD, or from cross-clamp to reperfusion in DBD

Warm ischemia time is when the organ lacks adequate perfusion at body temperature — in DCD donors this begins at circulatory arrest, and minimizing it is critical.

Question 23: A kidney transplant recipient presents with a creatinine that has doubled over 5 days with no fever, oliguria, or graft tenderness, and a therapeutic tacrolimus level. What is the MOST appropriate next diagnostic step?

Empiric pulse-dose steroids for presumed rejection
Renal transplant biopsy to differentiate rejection from other causes (Correct answer)
Increase tacrolimus dose to higher target
Initiate dialysis immediately

Correct answer: Renal transplant biopsy to differentiate rejection from other causes

A transplant biopsy is the gold standard for diagnosing the cause of graft dysfunction and distinguishing acute rejection from CNI toxicity, BK nephropathy, or recurrent disease.

Question 24: What is the significance of a positive cross-match in transplantation?

It indicates a good match and transplant should proceed
It indicates preformed antibodies that may cause rejection and is a contraindication (Correct answer)
It only affects kidney transplants
It predicts long-term graft survival

Correct answer: It indicates preformed antibodies that may cause rejection and is a contraindication

A positive cross-match indicates the recipient has preformed antibodies against donor antigens, which is generally a contraindication to transplantation due to high rejection risk.

Question 25: Which cardiovascular complication is the leading cause of death in long-term kidney transplant recipients?

Cardiovascular disease (CAD, MI, stroke) (Correct answer)
Pulmonary embolism
Arrhythmia from tacrolimus
Aortic aneurysm

Correct answer: Cardiovascular disease (CAD, MI, stroke)

Cardiovascular disease is the leading cause of death in long-term kidney transplant recipients, driven by traditional risk factors amplified by CNIs, steroids, and chronic kidney disease.

Question 26: A kidney transplant recipient is on tacrolimus and develops a trough level of 18 ng/mL in the first week post-transplant. What is the most appropriate nursing action?

Continue current dose and recheck in one week
Increase the tacrolimus dose to achieve higher levels
Notify the transplant team for dose reduction (Correct answer)
Discontinue tacrolimus and switch to cyclosporine

Correct answer: Notify the transplant team for dose reduction

A tacrolimus trough of 18 ng/mL exceeds typical early post-transplant targets (10–15 ng/mL) and raises the risk of nephrotoxicity, requiring prompt notification of the transplant team for dose adjustment.

Question 27: Which statement best describes tolerance in transplantation?

The graft is rejected slowly over years
The recipient accepts the graft without ongoing immunosuppression (Correct answer)
The recipient's immune system is permanently suppressed
The donor kidney functions normally without HLA matching

Correct answer: The recipient accepts the graft without ongoing immunosuppression

Operational tolerance means the recipient's immune system accepts the graft as self without requiring long-term immunosuppressive therapy.

Question 28: A heart transplant nurse is teaching a recipient about cardiac allograft vasculopathy (CAV). Which statement BEST describes CAV?

CAV is an acute rejection episode that resolves with steroid treatment
CAV presents with chest pain identical to classic angina because the heart is re-innervated
CAV is a diffuse, chronic immune-mediated coronary artery disease that is the leading cause of late graft loss in heart recipients (Correct answer)
CAV primarily affects the right coronary artery only

Correct answer: CAV is a diffuse, chronic immune-mediated coronary artery disease that is the leading cause of late graft loss in heart recipients

CAV is a diffuse, concentric intimal hyperplasia of coronary vessels driven by chronic allograft immune injury and is the leading cause of death beyond the first year post-heart transplant.

Question 29: Which type of rejection occurs within minutes to hours after transplantation due to preformed antibodies?

Hyperacute rejection (Correct answer)
Accelerated rejection
Chronic rejection
Acute cellular rejection

Correct answer: Hyperacute rejection

Hyperacute rejection is mediated by preformed recipient antibodies against donor antigens and occurs immediately after perfusion.

Question 30: The primary purpose of panel reactive antibody (PRA) testing in transplant candidates is to:

Assess the candidate's ABO blood type compatibility
Measure renal function prior to listing
Identify pre-formed antibodies that could cause hyperacute rejection (Correct answer)
Determine the candidate's viral serology status

Correct answer: Identify pre-formed antibodies that could cause hyperacute rejection

PRA testing detects pre-formed donor-specific antibodies (DSA) that can mediate hyperacute or antibody-mediated rejection upon exposure to the donor organ.

Question 31: Which electrolyte abnormality is a well-known side effect of tacrolimus in kidney transplant recipients?

Hypercalcemia
Hyponatremia
Hypermagnesemia
Hyperkalemia and hypomagnesemia (Correct answer)

Correct answer: Hyperkalemia and hypomagnesemia

Tacrolimus causes hyperkalemia through impaired renal potassium excretion and hypomagnesemia through urinary magnesium wasting, both of which require monitoring and dietary management.

Question 32: A nurse is caring for a deceased-donor liver recipient whose family asks about brain death. Which explanation is MOST accurate?

Brain death is diagnosed solely by EEG showing flat activity
Brain death means the patient is in a persistent vegetative state
Brain death is a coma from which recovery is expected with time
Brain death is the irreversible cessation of all brain and brainstem function, meeting legal and medical criteria for death (Correct answer)

Correct answer: Brain death is the irreversible cessation of all brain and brainstem function, meeting legal and medical criteria for death

Brain death is legally and medically defined as the irreversible cessation of all functions of the entire brain, including the brainstem, and is determined by standardized clinical criteria.

Question 33: A liver transplant recipient on tacrolimus is started on fluconazole for a fungal infection. What does the nurse anticipate?

Mycophenolate levels will increase instead
Tacrolimus levels will increase due to CYP3A4 inhibition (Correct answer)
No interaction; the drugs have different metabolism pathways
Tacrolimus levels will decrease significantly

Correct answer: Tacrolimus levels will increase due to CYP3A4 inhibition

Fluconazole is a potent CYP3A4 inhibitor that markedly reduces tacrolimus metabolism, causing drug levels to rise and increasing the risk of toxicity.

Question 34: A liver transplant recipient develops new-onset hypertension and nephrotoxicity. Which immunosuppressant is most likely responsible?

Tacrolimus (Correct answer)
Sirolimus
Azathioprine
Mycophenolate mofetil

Correct answer: Tacrolimus

Tacrolimus (a calcineurin inhibitor) is a common cause of nephrotoxicity and hypertension in transplant recipients.

Question 35: A liver transplant patient taking mycophenolate mofetil (MMF) develops severe diarrhea. What is the MOST appropriate nursing response?

Recommend over-the-counter loperamide and continue MMF at the same dose
Notify the transplant team; MMF dose reduction or conversion to enteric-coated mycophenolate sodium may be indicated (Correct answer)
Discontinue MMF immediately without consulting the team
Advise the patient to increase dietary fiber to manage symptoms

Correct answer: Notify the transplant team; MMF dose reduction or conversion to enteric-coated mycophenolate sodium may be indicated

GI toxicity (diarrhea, nausea) is the most common MMF side effect and can lead to dehydration and non-adherence; dose reduction or formulation change requires transplant team evaluation to avoid compromising immunosuppression.

Question 36: The direct pathway of allorecognition involves recipient T cells recognizing donor antigens presented by which cells?

Natural killer cells
Donor antigen-presenting cells (Correct answer)
Recipient B cells
Recipient antigen-presenting cells

Correct answer: Donor antigen-presenting cells

In the direct pathway, recipient T cells recognize intact donor MHC molecules presented directly on donor antigen-presenting cells.

Question 37: Sirolimus (rapamycin) differs from tacrolimus in its mechanism of action by:

Blocking co-stimulatory signals between antigen-presenting cells and T-cells
Blocking calcineurin and inhibiting IL-2 production
Inhibiting mTOR signaling to block T-cell proliferation (Correct answer)
Depleting T-lymphocytes through complement-mediated lysis

Correct answer: Inhibiting mTOR signaling to block T-cell proliferation

Sirolimus inhibits the mammalian target of rapamycin (mTOR), blocking cytokine-driven T-cell proliferation at the G1-to-S phase transition.

Question 38: Which immunologic test is performed before transplantation to detect preformed donor-specific antibodies?

Complement fixation test
Cross-match test (Correct answer)
Western blot
ELISA for ANA

Correct answer: Cross-match test

The cross-match test mixes recipient serum with donor lymphocytes to detect preformed donor-specific antibodies that could cause rejection.

Question 39: Which electrolyte abnormality is MOST commonly associated with tacrolimus and cyclosporine use in transplant recipients?

Hyperkalemia (Correct answer)
Hypophosphatemia
Hyponatremia
Hypercalcemia

Correct answer: Hyperkalemia

Calcineurin inhibitors cause hyperkalemia by impairing renal tubular potassium excretion through aldosterone inhibition and direct tubular effects.

Question 40: A liver transplant patient is started on sirolimus. Which side effect should the nurse educate the patient about?

Peripheral neuropathy
Impaired wound healing and hyperlipidemia (Correct answer)
Uveitis
Gingival hyperplasia

Correct answer: Impaired wound healing and hyperlipidemia

Sirolimus commonly causes impaired wound healing and hyperlipidemia, and is often avoided in the early post-transplant period for these reasons.

Question 41: Which prophylactic medication is routinely prescribed to prevent Pneumocystis jirovecii pneumonia (PCP) in solid organ transplant recipients?

Fluconazole
Valganciclovir
Dapsone monotherapy
Trimethoprim-sulfamethoxazole (TMP-SMX) (Correct answer)

Correct answer: Trimethoprim-sulfamethoxazole (TMP-SMX)

TMP-SMX (Bactrim) is the first-line prophylactic agent for PCP in immunocompromised transplant patients due to its proven efficacy and broad coverage.

Question 42: Which class of HLA antigens is most important in kidney transplant matching?

HLA-C
HLA-A only
HLA-DR (Correct answer)
HLA-B only

Correct answer: HLA-DR

HLA-DR matching is considered the most clinically important in kidney transplantation due to its strong association with acute rejection rates and graft survival.

Question 43: Which side effect is most associated with long-term tacrolimus use in transplant recipients?

Gingival hyperplasia
Hepatotoxicity
Hypertension and nephrotoxicity (Correct answer)
Peripheral neuropathy

Correct answer: Hypertension and nephrotoxicity

Long-term tacrolimus use commonly causes nephrotoxicity and hypertension, both of which require ongoing monitoring in transplant recipients.

Question 44: A deceased-donor organ allocation nurse receives a kidney offer for a highly sensitized patient with a panel reactive antibody (PRA) of 98%. What is the MOST critical pre-transplant test to perform?

HLA-DR matching only
Renal biopsy of the donor kidney
ABO blood typing repeat
Virtual or prospective crossmatch (Correct answer)

Correct answer: Virtual or prospective crossmatch

In highly sensitized recipients, a virtual or prospective crossmatch is critical to detect donor-specific antibodies (DSA) that could cause hyperacute rejection.

Question 45: A kidney transplant patient presents with fever, dysuria, and a positive urine culture for E. coli. The transplant nurse recognizes that urinary tract infections post-transplant are particularly dangerous because:

Immunosuppression masks symptoms and increases risk of urosepsis and pyelonephritis of the allograft (Correct answer)
E. coli is universally resistant to all antibiotics in transplant patients
They always lead to graft loss within 48 hours
UTIs cause irreversible tacrolimus toxicity

Correct answer: Immunosuppression masks symptoms and increases risk of urosepsis and pyelonephritis of the allograft

Immunosuppression blunts the febrile and inflammatory response, allowing UTIs to progress rapidly to urosepsis or allograft pyelonephritis before clinical recognition.

Question 46: The typical length of a kidney transplant patient's hospital stay is

19 to 32 days
55 to 72 days
12 to 14 days
7 to 10 days (Correct answer)

Correct answer: 7 to 10 days

Following a kidney transplant, patients typically have a hospital stay of approximately 7 to 10 days. This period is essential for close monitoring of the new kidney's function, managing post-operative pain, initiating and adjusting immunosuppressive medications, and providing comprehensive education on post-transplant care. This timeframe allows for initial graft stability and addresses immediate complications before the patient is discharged.

Question 47: Acute cellular rejection is primarily mediated by which immune cells?

B lymphocytes
T lymphocytes (Correct answer)
Neutrophils
Natural killer cells

Correct answer: T lymphocytes

Acute cellular rejection is primarily mediated by T lymphocytes that recognize donor antigens and mount an immune response against the graft.

Question 48: In a CMV donor-positive/recipient-negative (D+/R-) transplant scenario, what is the recommended management strategy?

Acyclovir prophylaxis for the first 30 days
Pre-emptive therapy based on weekly CMV PCR monitoring only
Universal prophylaxis with valganciclovir for 3–6 months (Correct answer)
No prophylaxis needed since the recipient has no prior exposure

Correct answer: Universal prophylaxis with valganciclovir for 3–6 months

D+/R- is the highest-risk CMV serostatus combination, requiring universal antiviral prophylaxis (valganciclovir) for 3–6 months post-transplant to prevent primary CMV disease.

Question 49: A parasite that most frequently spreads from animals to people through contact with infected animal feces. More frequent in the heart since it occurs in the cardiac muscle. Van imitates heart rejection.

Corticosteroids
Toxoplasmosis (Correct answer)
Lyme Disease
Cytomegalovirus

Correct answer: Toxoplasmosis

Toxoplasmosis, caused by the parasite *Toxoplasma gondii*, is often transmitted through contact with infected animal feces. In immunocompromised individuals, such as transplant recipients, it can cause myocarditis (inflammation of the heart muscle). The symptoms of toxoplasmosis-induced myocarditis can mimic those of heart rejection, making accurate diagnosis challenging but critical for appropriate treatment.

Question 50: When counseling a female kidney transplant recipient of childbearing age about pregnancy, the transplant nurse should emphasize that:

Pregnancy is absolutely contraindicated for at least 10 years post-transplant
Tacrolimus levels typically need to be increased during pregnancy
Mycophenolate mofetil must be discontinued before conception due to teratogenicity (Correct answer)
Breastfeeding is encouraged to reduce maternal immunosuppression needs

Correct answer: Mycophenolate mofetil must be discontinued before conception due to teratogenicity

Mycophenolate mofetil (MMF) is a known teratogen associated with congenital malformations and must be switched to azathioprine at least 6 weeks before conception.

Question 51: A heart transplant patient develops a new resting heart rate of 58 bpm with fatigue and dyspnea on post-operative day 10. What etiology should the nurse prioritize?

Donor heart denervation effect
Beta-blocker toxicity
Acute cellular rejection (Correct answer)
Sinus bradycardia from vagal tone

Correct answer: Acute cellular rejection

New fatigue and dyspnea with hemodynamic changes in the first weeks post-heart transplant are classic signs of acute cellular rejection until proven otherwise and require urgent endomyocardial biopsy.

Question 52: Which medication is used as induction therapy in transplantation and works by depleting T lymphocytes?

Prednisone
Anti-thymocyte globulin (ATG) (Correct answer)
Tacrolimus
Mycophenolate mofetil

Correct answer: Anti-thymocyte globulin (ATG)

Anti-thymocyte globulin (ATG) is a polyclonal antibody used for induction that rapidly depletes T lymphocytes, reducing the risk of early acute rejection.

Question 53: Which apnea test finding confirms brain death during donor evaluation?

Positive corneal reflex
Decreased oxygen saturation alone
No spontaneous respirations with PaCO2 rising to ≥60 mmHg or 20 mmHg above baseline (Correct answer)
Spontaneous respirations observed during the test

Correct answer: No spontaneous respirations with PaCO2 rising to ≥60 mmHg or 20 mmHg above baseline

A positive apnea test for brain death requires no spontaneous respirations despite a PaCO2 ≥60 mmHg or 20 mmHg above baseline, confirming absent brainstem function.

Question 54: What is the primary role of the transplant coordinator in patient care?

To serve as the primary point of contact, coordinating care across the transplant team and providing patient education and support (Correct answer)
To perform organ procurement surgeries
To evaluate organ allocation decisions
To prescribe immunosuppressive medications

Correct answer: To serve as the primary point of contact, coordinating care across the transplant team and providing patient education and support

The transplant coordinator is the central communication hub for the patient, coordinating care across surgeons, nephrologists, pharmacists, social workers, and other team members.

Question 55: Many facilities use enzyme immunoassay for HIV testing. Which of the following techniques confirms ambiguous or positive results?

Flow cytometry
Complement dependent cytotoxic assay
Western Blot (Correct answer)
Enzyme linked immunosorbent assay (ELISA)

Correct answer: Western Blot

The enzyme immunoassay (EIA or ELISA) is a screening test for HIV. If the EIA yields a positive or ambiguous result, a more specific and confirmatory test is required to definitively diagnose HIV infection. The Western Blot is considered the gold standard confirmatory test, as it detects specific HIV antibodies with high accuracy.

Question 56: A renal transplant patient on mycophenolate mofetil reports severe diarrhea and nausea. What is the most appropriate nursing intervention?

Discontinue MMF immediately without provider notification
Administer an antiemetic and continue the current dose
Reassure the patient that GI side effects are expected and will resolve
Document and notify the provider — dose reduction or switch to EC-MPS may be needed (Correct answer)

Correct answer: Document and notify the provider — dose reduction or switch to EC-MPS may be needed

GI toxicity is a common MMF side effect that may require dose reduction or conversion to enteric-coated mycophenolate sodium (EC-MPS) — the provider must be notified.

Question 57: How should a transplant nurse counsel a patient about sun exposure after transplantation?

Sun protection is only needed in the first year post-transplant
Only melanoma risk is increased — other skin exposures are safe
Sun exposure is encouraged to increase vitamin D production
Transplant recipients have significantly increased risk of skin cancer and must use high SPF sunscreen and protective clothing daily (Correct answer)

Correct answer: Transplant recipients have significantly increased risk of skin cancer and must use high SPF sunscreen and protective clothing daily

Immunosuppression dramatically increases skin cancer risk (up to 100-fold for squamous cell carcinoma), requiring lifelong sun protection and regular dermatologic follow-up.

Question 58: What dietary counseling should a transplant nurse provide to a patient taking tacrolimus about grapefruit?

One glass of grapefruit juice per day is acceptable
Grapefruit is encouraged to boost immune function
Grapefruit and grapefruit juice must be avoided because they inhibit CYP3A4 and can dramatically increase tacrolimus levels (Correct answer)
Grapefruit only affects cyclosporine, not tacrolimus

Correct answer: Grapefruit and grapefruit juice must be avoided because they inhibit CYP3A4 and can dramatically increase tacrolimus levels

Grapefruit inhibits intestinal CYP3A4 enzymes, unpredictably elevating tacrolimus blood levels and risking toxicity — it must be completely avoided.

Question 59: What is the primary purpose of performing a liver biopsy on a donor liver before transplantation?

To evaluate for hepatitis C
To assess the degree of hepatic steatosis, which affects graft function (Correct answer)
To match histocompatibility antigens
To detect rejection before transplant

Correct answer: To assess the degree of hepatic steatosis, which affects graft function

Donor liver biopsy primarily assesses macrovascular steatosis — livers with greater than 30–40% steatosis have increased risk of primary non-function.

Question 60: A transplant coordinator is developing a transplant education program. Which teaching method is most effective for improving medication adherence?

Providing a written medication list at discharge only
Instructing family members only, not the patient
One verbal counseling session before discharge
Combining written materials, teach-back method, pill organizers, and follow-up reinforcement (Correct answer)

Correct answer: Combining written materials, teach-back method, pill organizers, and follow-up reinforcement

Multimodal education combining written materials, teach-back, organizational tools, and ongoing reinforcement is most effective for improving medication adherence in transplant recipients.

Question 61: Renal artery stenosis after kidney transplantation typically presents with which clinical findings?

Hypertension that is difficult to control and rising creatinine (Correct answer)
Peripheral edema and weight gain
Gross hematuria and flank pain
Fever and leukocytosis

Correct answer: Hypertension that is difficult to control and rising creatinine

Transplant renal artery stenosis classically presents with refractory hypertension and worsening allograft function, often diagnosed by Doppler ultrasound.

Question 62: A patient taking tacrolimus is prescribed rifampin for tuberculosis. What effect should the transplant nurse anticipate?

Tacrolimus will be contraindicated and must be stopped
Tacrolimus levels will increase significantly
Tacrolimus levels will decrease significantly due to CYP3A4 induction (Correct answer)
Rifampin has no effect on tacrolimus levels

Correct answer: Tacrolimus levels will decrease significantly due to CYP3A4 induction

Rifampin is a potent CYP3A4 inducer that markedly accelerates tacrolimus metabolism, requiring significant dose increases to maintain therapeutic levels.

Question 63: The majority of patients will have an intradermal skin examination for TB. However, some people could be anergic because of their severe conditions. In such circumstances, the patient will get control. The two kin test controls that are most often utilized are:

Measles and influenza
Bacillus Calmette-Guerin (BCG) and human T-lymphotropic virus-1 (HTLV-1)
Mumps and BCG
Candida and mumps (Correct answer)

Correct answer: Candida and mumps

In patients suspected of anergy (inability to mount an immune response), control skin tests are administered to confirm their immune status. Candida and mumps antigens are commonly used as controls because most individuals have been exposed to these pathogens and would typically show a positive skin reaction if their immune system is functional. A negative reaction to these controls indicates anergy.

Question 64: Under the Organ Procurement and Transplantation Network (OPTN) rules, who is legally responsible for a transplant program's compliance with OPTN policies?

The Organ Procurement Organization (OPO) for that region
UNOS directly manages compliance for all centers
The Centers for Medicare & Medicaid Services (CMS) alone
The hospital's transplant program and its designated transplant physicians/surgeons (Correct answer)

Correct answer: The hospital's transplant program and its designated transplant physicians/surgeons

OPTN membership obligates each transplant program — including its designated transplant physicians and hospital administration — to comply with OPTN policies, with the program bearing primary accountability.

Question 65: A kidney transplant recipient with a high temperature, discomfort at the surgical site, leukocytosis, malfunction of the renal allograft, and silt in the urine. Which diagnostic procedure is recommended?

A cLean-catch midstream urine specimen for urinalysis
Categorized urine specimen for culture
Catheterized urine specimen for culture and blood culture
Clean-catch midstream urine specimen for culture (bacterial and fungal) (Correct answer)

Correct answer: Clean-catch midstream urine specimen for culture (bacterial and fungal)

The patient's symptoms—high temperature, surgical site discomfort, leukocytosis, renal allograft malfunction, and 'silt' in the urine—strongly suggest a urinary tract infection (UTI) or pyelonephritis, which is a serious concern in transplant recipients. A clean-catch midstream urine specimen for bacterial and fungal culture is the most appropriate diagnostic procedure. This test helps identify the specific causative organism, guiding targeted antimicrobial therapy, and minimizes contamination compared to a simple urinalysis.

Question 66: A nurse caring for a patient scheduled for surgery discovers that the patient cannot sign the permission form because of narcotic analgesics. Instead of the patient, who should sign the permission form?

The hospital chaplain should sign the consent
Patient can go to surgery without a consent
Court signs the consent
One family member can sign with two witnesses signatures (Correct answer)

Correct answer: One family member can sign with two witnesses signatures

If a patient is incapacitated due to medication and cannot provide informed consent, a legally authorized representative, typically a family member, can sign the consent form. To ensure validity and proper documentation, this process usually requires the signatures of two witnesses who can attest to the signing and the patient's inability to consent.

Question 67: A transplant nurse notes a tacrolimus trough level of 22 ng/mL in a 3-month post-kidney-transplant patient. What is the most appropriate action?

Increase the dose because levels should be higher at 3 months
Administer a supplemental dose immediately
Document and continue current regimen
Notify the provider because the level is supratherapeutic (Correct answer)

Correct answer: Notify the provider because the level is supratherapeutic

At 3 months post-transplant, tacrolimus trough targets are typically 8–12 ng/mL; a level of 22 ng/mL is supratherapeutic and requires physician notification.

Question 68: A transplant nurse is educating a renal transplant patient about food safety. Which of the following instructions is MOST appropriate?

Raw shellfish and undercooked meats should be strictly avoided (Correct answer)
Probiotic yogurt is contraindicated in all immunosuppressed patients
Grapefruit is safe in small amounts if taken away from medications
Avoid all fresh fruits and vegetables permanently

Correct answer: Raw shellfish and undercooked meats should be strictly avoided

Immunosuppressed transplant recipients are at high risk for foodborne illness from pathogens like Listeria and Vibrio, making raw shellfish and undercooked meats dangerous.

Question 69: A renal transplant recipient at 3 years post-transplant develops a skin lesion diagnosed as squamous cell carcinoma. What education should the transplant nurse prioritize?

Sun protection, annual full-body skin exams, and awareness that immunosuppression significantly elevates skin cancer risk (Correct answer)
Skin cancer risk is highest in the first 6 months and then normalizes
Discontinue mycophenolate immediately
This is unrelated to immunosuppression; routine dermatology follow-up only

Correct answer: Sun protection, annual full-body skin exams, and awareness that immunosuppression significantly elevates skin cancer risk

Transplant recipients have a 65–250 times higher risk of squamous cell carcinoma due to chronic immunosuppression, and lifelong sun protection plus annual dermatology screening is essential.

Question 70: Which of the following is a goal of patient evaluation for solid organ transplantation?

To determine if there are other options for managing the current disease
To determine if there are comorbidities that would contraindicate transplantation
All of the above (Correct answer)
To evaluate the patient's ability to comply with long-term posttransplant follow up requirements

Correct answer: All of the above

Patient evaluation for solid organ transplantation is a comprehensive process that addresses multiple critical aspects. It aims to determine if alternative treatments exist, assess the patient's ability to adhere to complex post-transplant regimens, and identify any comorbidities that could contraindicate transplantation or compromise its success. All these factors are crucial for successful transplant outcomes.

Question 71: Which psychological condition is most commonly seen in transplant recipients awaiting an organ on the waiting list?

Obsessive-compulsive disorder
Mania
Schizophrenia
Depression and anxiety (Correct answer)

Correct answer: Depression and anxiety

Depression and anxiety are highly prevalent in transplant candidates and recipients, driven by uncertainty, health burden, and life disruption, requiring regular psychosocial screening.

Question 72: A lung transplant recipient develops a new obstructive pattern on pulmonary function testing at 18 months post-transplant with an FEV1 decline of 25% from baseline. This is MOST consistent with:

Pneumonia
Pleural effusion
Bronchiolitis obliterans syndrome (BOS) (Correct answer)
Acute cellular rejection

Correct answer: Bronchiolitis obliterans syndrome (BOS)

Bronchiolitis obliterans syndrome is the most common form of chronic lung allograft dysfunction, characterized by progressive obstructive airflow decline.

Question 73: A kidney transplant recipient's serum creatinine rises from 1.2 to 2.8 mg/dL at 6 months post-transplant without symptoms. What is the recommended next step?

Obtain a kidney transplant biopsy to determine the cause (Correct answer)
Start pulse steroids empirically without biopsy
Reassure and recheck in one month
Increase tacrolimus dose empirically

Correct answer: Obtain a kidney transplant biopsy to determine the cause

A significant rise in creatinine requires biopsy to differentiate between rejection, CNI toxicity, BK nephropathy, and other causes before initiating treatment.

Question 74: A paracentesis is performed on a patient with end-stage liver disease to remove enormous ascites that is seriously limiting their ability to breathe. What is utilized to treat hyponatremia and renal impairment brought on by a reduced effective arterial volume?

Acetazolamide
Spironolactone
Albumin infusion (Correct answer)
Packed red blood cells

Correct answer: Albumin infusion

After a large-volume paracentesis in patients with end-stage liver disease, there is a risk of significant fluid shifts and reduced effective arterial volume, which can lead to complications like hyponatremia and renal impairment. Albumin infusion helps to maintain intravascular volume and oncotic pressure, thereby preventing these post-paracentesis complications.

Question 75: Which statement best describes the expanded criteria donor (ECD) designation for kidneys?

ECD kidneys are always declined by transplant centers
ECD kidneys come from donors with risk factors associated with higher graft failure rates but may still benefit recipients (Correct answer)
ECD kidneys are only from donors under age 18
ECD designation applies only to donors with cancer history

Correct answer: ECD kidneys come from donors with risk factors associated with higher graft failure rates but may still benefit recipients

ECD kidneys come from donors with specific risk factors (age ≥60, or age 50–59 with comorbidities) that are associated with higher graft failure rates but may still provide benefit over dialysis.

Question 76: Which blood group compatibility rule is universally applied in solid organ transplantation?

ABO blood group compatibility between donor and recipient is required (Correct answer)
Blood type is irrelevant in deceased donor transplants
Donor and recipient must share the same Rh factor
Only HLA matching is required, not ABO

Correct answer: ABO blood group compatibility between donor and recipient is required

ABO blood group compatibility is required in solid organ transplantation because ABO antigens are expressed on vascular endothelium and can trigger hyperacute rejection.

Question 77: A potential organ donor has a history of treated hypertension and mild proteinuria. What step is most important before accepting the kidneys?

Perform a donor kidney biopsy to assess histologic quality (Correct answer)
Check the donor's family history only
Automatically decline the kidneys due to donor comorbidities
Proceed with procurement without additional evaluation

Correct answer: Perform a donor kidney biopsy to assess histologic quality

A biopsy helps assess the degree of glomerulosclerosis and arterial changes, informing the decision to use one or both kidneys or decline them.

Question 78: Which donor-derived infection poses the HIGHEST risk of undetected transmission during the standard infectious disease screening window period?

HIV during acute infection (NAT window period) (Correct answer)
Epstein-Barr virus (EBV)
Hepatitis B virus (HBV)
Cytomegalovirus (CMV)

Correct answer: HIV during acute infection (NAT window period)

HIV NAT testing has a window period during acute infection when viral load may be below detection limits, making recent high-risk donor behavior the primary residual transmission risk.

Question 79: What is the significance of Panel Reactive Antibody (PRA) percentage in transplant candidates?

It indicates the percentage of donor pool against which the patient has antibodies (Correct answer)
It measures kidney function
It measures liver enzyme levels
It determines blood type compatibility

Correct answer: It indicates the percentage of donor pool against which the patient has antibodies

A high PRA means the recipient has antibodies against a large portion of potential donors, making compatible matching more difficult.

Question 80: Donation after Circulatory Death (DCD) differs from Donation after Brain Death (DBD) in what key way?

DCD occurs after cessation of cardiac function rather than brain death declaration (Correct answer)
DCD is only applicable in pediatric donors
DCD organs are only used for tissue donation
DCD requires family refusal of brain death criteria

Correct answer: DCD occurs after cessation of cardiac function rather than brain death declaration

In DCD, organ donation proceeds after the planned withdrawal of life support and confirmation of circulatory death, rather than after brain death declaration.

Question 81: Which statement accurately describes maintenance immunosuppression in transplantation?

It is given only during rejection episodes
It is weaned off after 1 year post-transplant
It is only required for high-immunologic-risk patients
It consists of lifelong medications to prevent rejection (Correct answer)

Correct answer: It consists of lifelong medications to prevent rejection

Maintenance immunosuppression consists of lifelong medications that continuously suppress the immune system to prevent rejection of the transplanted organ.

Question 82: Which statement is TRUE regarding expanded criteria donors (ECD) for kidney transplantation?

ECD status applies to living donors over age 55
ECD kidneys have equivalent outcomes to standard criteria donor kidneys
ECD kidneys carry higher risk of delayed graft function but remain preferable to continued dialysis for most recipients (Correct answer)
ECD kidneys should only be offered to pediatric recipients

Correct answer: ECD kidneys carry higher risk of delayed graft function but remain preferable to continued dialysis for most recipients

ECD kidneys (from donors >60 or >50 with comorbidities) have higher rates of delayed graft function and reduced long-term survival, but for most dialysis patients the survival benefit of transplantation outweighs this risk.

Question 83: There are several signs of decreased cardiac output in heart recipients.

Metabolic alkalosis
Decreased BUN and serum creatinine
Jugular venousdistention (Correct answer)
Hypertension

Correct answer: Jugular venousdistention

Jugular venous distention (JVD) is a clinical sign indicating increased central venous pressure, which can be a manifestation of fluid overload or right-sided heart failure. In heart transplant recipients, decreased cardiac output can lead to fluid backup and elevated venous pressures, making JVD a key indicator of this complication.

Question 84: Cyclosporine A is associated with which distinctive cosmetic side effect not seen with tacrolimus?

Acne
Alopecia
Moon face
Gingival hyperplasia (Correct answer)

Correct answer: Gingival hyperplasia

Gingival hyperplasia is a distinctive side effect of cyclosporine that is not typically seen with tacrolimus, making dental hygiene especially important.

Question 85: When assessing a transplant candidate's psychosocial readiness, which factor is considered an ABSOLUTE contraindication by most transplant programs?

Active substance use disorder with ongoing use and denial (Correct answer)
History of treated depression
Single marital status with adequate social support
History of non-compliance that has since been corrected

Correct answer: Active substance use disorder with ongoing use and denial

Active, ongoing substance use disorder — particularly with denial — represents an absolute contraindication at most centers because it directly predicts post-transplant non-adherence and poor outcomes.

Question 86: Chronic allograft nephropathy is characterized by which pathological finding on biopsy?

Hyperacute vascular thrombosis
Interstitial fibrosis and tubular atrophy (Correct answer)
Granulomatous inflammation
Neutrophilic infiltration

Correct answer: Interstitial fibrosis and tubular atrophy

Chronic allograft nephropathy is characterized by interstitial fibrosis and tubular atrophy, reflecting cumulative immune and non-immune injury over time.

Question 87: Which serologic test must be negative in a potential organ donor to prevent transmission of HIV to the transplant recipient?

Anti-HCV antibody
HIV-1/2 antibody and HIV NAT (nucleic acid testing) (Correct answer)
CMV IgG
HBsAg only

Correct answer: HIV-1/2 antibody and HIV NAT (nucleic acid testing)

Both HIV antibody testing and nucleic acid testing (NAT) are performed on donors to minimize the window period and prevent HIV transmission to recipients.

Question 88: The Kidney Donor Profile Index (KDPI) is used for what purpose?

To calculate the recipient's waiting time on the transplant list
To estimate the quality and expected function of a deceased donor kidney relative to the donor pool (Correct answer)
To determine the recipient's risk of rejection
To predict graft survival based on immunosuppression regimen

Correct answer: To estimate the quality and expected function of a deceased donor kidney relative to the donor pool

KDPI uses donor characteristics to estimate kidney quality — a higher KDPI indicates a greater risk of graft failure compared to the average donor kidney.

Question 89: A transplant patient says they cannot afford their medications. What is the most appropriate nursing action?

Advise the patient to use half doses to stretch their supply
Document the concern and continue without intervention
Advise the patient to skip non-critical medications to save money
Connect the patient with social work, patient assistance programs, and transplant coordinators to address financial barriers (Correct answer)

Correct answer: Connect the patient with social work, patient assistance programs, and transplant coordinators to address financial barriers

Financial barriers to medication access are a major adherence threat — the transplant team's social worker and patient assistance programs must be engaged immediately.

Question 90: A renal transplant nurse notes a recipient's urine output drops from 200 mL/hr to 20 mL/hr at post-operative hour 6. What is the PRIORITY intervention?

Increase IV fluid rate to 300 mL/hr
Administer furosemide 40 mg IV
Call for emergent dialysis
Check for Foley catheter kinking or obstruction first (Correct answer)

Correct answer: Check for Foley catheter kinking or obstruction first

The first step in evaluating sudden oliguria post-transplant is to rule out a mechanical cause such as Foley catheter obstruction, which is common and easily correctable.

Question 91: Which topic is most critical to include in discharge education for a new kidney transplant recipient?

Exercise guidelines for returning to sports
Dietary restrictions for cholesterol management
How to apply for disability benefits
Signs and symptoms of rejection and when to seek immediate care (Correct answer)

Correct answer: Signs and symptoms of rejection and when to seek immediate care

Teaching rejection warning signs (decreased urine output, fever, graft tenderness, rising creatinine) and when to seek care is the most critical discharge education topic.

Question 92: Which term describes the production of donor-specific antibodies after transplantation that were not present before the procedure?

Passive immunity
Primary sensitization
Allorecognition
De novo donor-specific antibody formation (Correct answer)

Correct answer: De novo donor-specific antibody formation

De novo donor-specific antibody (DSA) formation refers to new antibodies produced after transplant targeting donor HLA antigens, associated with chronic antibody-mediated rejection.

Question 93: The most likely diagnosis is intermittent hypoxemia and stridor in a lung recipient, which are alleviated by sputum coughing.

Primary graft dysfunction
Inadequate bronchial anastomosis
Pneumothorax
Tracheobronchial stenosis (Correct answer)

Correct answer: Tracheobronchial stenosis

Intermittent hypoxemia and stridor in a lung transplant recipient, especially when alleviated by sputum coughing, are highly indicative of tracheobronchial stenosis. This condition involves the narrowing of the airways, often at the anastomosis site after transplantation. The symptoms arise from airflow obstruction, and temporary relief with coughing suggests that mucus plugging or partial obstruction, commonly associated with stenosis, is being cleared.

Question 94: Post-transplant erythrocytosis (PTE) in kidney transplant recipients is best managed by which medication class?

Erythropoiesis-stimulating agents
Calcium channel blockers
ACE inhibitors or angiotensin receptor blockers (Correct answer)
Diuretics

Correct answer: ACE inhibitors or angiotensin receptor blockers

ACE inhibitors and ARBs effectively reduce erythrocytosis in post-transplant patients by decreasing erythropoietin-stimulated red cell production.

Question 95: Which immunosuppressant works by blocking the costimulatory signal required for T-cell activation?

Belatacept (Correct answer)
Mycophenolate mofetil
Prednisone
Tacrolimus

Correct answer: Belatacept

Belatacept is a CTLA-4 Ig fusion protein that blocks the CD28-B7 costimulatory pathway, preventing full T-cell activation without antigen signal blockade.

Question 96: Prednisone is used in transplant regimens primarily for which mechanism?

Broad anti-inflammatory and immunosuppressive effects via glucocorticoid receptor activation (Correct answer)
Inhibition of IL-2 production specifically
Selective T-cell depletion
Blocking B-cell antibody production

Correct answer: Broad anti-inflammatory and immunosuppressive effects via glucocorticoid receptor activation

Prednisone acts through glucocorticoid receptors to broadly suppress inflammation and immune activation, making it useful as maintenance and anti-rejection therapy.

Question 97: Which clinical finding differentiates hepatic artery thrombosis (HAT) from biliary stricture in a liver transplant recipient?

Biliary stricture causes graft failure while HAT causes cholestasis
HAT causes dramatically elevated transaminases and can cause fulminant graft failure; biliary strictures cause cholestatic LFT pattern (Correct answer)
HAT presents only with fever and bacteremia
Both present identically; only biopsy distinguishes them

Correct answer: HAT causes dramatically elevated transaminases and can cause fulminant graft failure; biliary strictures cause cholestatic LFT pattern

HAT presents acutely with ischemic hepatocyte injury (high AST/ALT) and can precipitate graft necrosis, while biliary strictures cause a more insidious cholestatic pattern with elevated bilirubin and alkaline phosphatase.

Question 98: Which condition is BK polyomavirus nephropathy MOST likely to be mistaken for on kidney transplant biopsy, creating a diagnostic challenge?

Chronic antibody-mediated rejection
CNI toxicity
Acute cellular rejection (T-cell mediated) (Correct answer)
Recurrent focal segmental glomerulosclerosis

Correct answer: Acute cellular rejection (T-cell mediated)

BK nephropathy causes tubulitis and interstitial nephritis that histologically mimics acute T-cell-mediated rejection, but treatment differs radically — steroids for rejection vs. immunosuppression reduction for BK.

Question 99: Which immunosuppressant is an mTOR inhibitor used in transplantation?

Sirolimus (Correct answer)
Cyclosporine
Basiliximab
Azathioprine

Correct answer: Sirolimus

Sirolimus (rapamycin) is an mTOR inhibitor that blocks the intracellular signaling pathway required for T-cell proliferation after IL-2 stimulation.

Question 100: Which immunosuppressant is classified as an mTOR inhibitor and is known to impair wound healing?

Tacrolimus
Sirolimus (Correct answer)
Mycophenolate mofetil
Azathioprine

Correct answer: Sirolimus

Sirolimus (rapamycin) is an mTOR inhibitor that inhibits cell proliferation, which impairs wound healing and is often avoided or delayed in the early post-operative period.

Question 101: Which complication is indicated by a sudden cessation of urine output, graft pain, and hematuria in an early post-kidney-transplant patient?

Urinary tract infection
Renal vein thrombosis (Correct answer)
Lymphocele
Acute tubular necrosis

Correct answer: Renal vein thrombosis

Sudden anuria with graft pain and hematuria in the early post-transplant period suggests renal vein thrombosis, a surgical emergency requiring immediate intervention.

Question 102: What is the role of an Organ Procurement Organization (OPO) in the transplant process?

It performs transplant surgeries at regional hospitals
It provides immunosuppressive medications to transplant recipients
It coordinates organ donation, evaluation, allocation, and procurement from deceased donors (Correct answer)
It manages the transplant waiting list

Correct answer: It coordinates organ donation, evaluation, allocation, and procurement from deceased donors

OPOs coordinate all aspects of deceased donor organ procurement, including family consent, donor evaluation, organ allocation, and logistics.

Question 103: A patient awaiting a heart transplant has blood type O negative. This patient can receive a heart from:

O negative and O positive donors only (Correct answer)
Only O negative donors
Any ABO blood type donor
O and A donors only

Correct answer: O negative and O positive donors only

Blood type O is the universal donor for red cells, but for solid organs ABO compatibility (not exact match) is required; O recipients can receive from O+ or O- donors.

Question 104: A heart transplant patient is being evaluated six months post-transplant with an endomyocardial biopsy. The pathology report reads 'Grade 2R acute cellular rejection.' According to ISHLT grading, this indicates:

Mild rejection not requiring treatment
No rejection; routine follow-up only
Moderate rejection requiring augmented immunosuppression (Correct answer)
Severe rejection with hemodynamic compromise

Correct answer: Moderate rejection requiring augmented immunosuppression

Grade 2R (moderate) acute cellular rejection per ISHLT 2004 criteria typically warrants treatment with pulse steroids or augmented immunosuppression.

Question 105: Which live vaccines are contraindicated in solid organ transplant recipients on maintenance immunosuppression?

Inactivated influenza and pneumococcal vaccines
MMR (measles-mumps-rubella) and varicella zoster live vaccine (Correct answer)
Tetanus, diphtheria, and pertussis (Tdap)
Hepatitis B and recombinant zoster vaccine

Correct answer: MMR (measles-mumps-rubella) and varicella zoster live vaccine

Live attenuated vaccines such as MMR and live varicella zoster vaccine carry the risk of vaccine-strain infection in immunocompromised patients and are contraindicated post-transplant.

Question 106: Which dietary instruction is important for transplant recipients to prevent foodborne infections?

Consume unpasteurized dairy products for probiotic benefits
Avoid raw or undercooked meats, unpasteurized products, and unwashed produce due to immunocompromised status (Correct answer)
Food safety precautions are only needed in the first 3 months
Raw sushi is acceptable if from reputable restaurants

Correct answer: Avoid raw or undercooked meats, unpasteurized products, and unwashed produce due to immunocompromised status

Immunocompromised transplant recipients must follow strict food safety practices because organisms like Salmonella, Listeria, and Cryptosporidium can cause severe or fatal infections.

Question 107: What is the most important nursing assessment parameter in the first 24 hours after kidney transplantation?

Blood glucose monitoring every 4 hours
Oral intake documentation
Hourly urine output measurement (Correct answer)
Daily weight measurement only

Correct answer: Hourly urine output measurement

Hourly urine output is the most critical early indicator of graft function — sudden decrease can indicate vascular complications, obstruction, or rejection.

Question 108: Which laboratory trend is MOST consistent with calcineurin inhibitor (CNI) nephrotoxicity in a stable kidney transplant recipient?

Gradual creatinine rise with supratherapeutic CNI trough levels and no proteinuria (Correct answer)
Sudden 30% rise in creatinine with fever and graft tenderness
Proteinuria >3 g/day with subnephrotic creatinine
Eosinophilia with hematuria

Correct answer: Gradual creatinine rise with supratherapeutic CNI trough levels and no proteinuria

CNI nephrotoxicity typically presents as a gradual, dose-dependent rise in creatinine associated with elevated drug troughs, without the systemic signs of rejection.

Question 109: Which donor characteristic increases the risk of disease transmission to the transplant recipient?

Donor age over 65
Cold ischemia time over 12 hours
Recent high-risk behaviors for bloodborne infections (Correct answer)
Donor hypertension

Correct answer: Recent high-risk behaviors for bloodborne infections

Recent high-risk behaviors (IV drug use, unprotected sex with multiple partners) increase the risk of bloodborne disease transmission despite negative donor testing.

Question 110: Panel Reactive Antibody (PRA) levels above what percentage indicate a highly sensitized transplant candidate?

50%
20%
10%
80% (Correct answer)

Correct answer: 80%

A PRA of 80% or higher indicates a highly sensitized patient with many preformed antibodies, making it difficult to find a compatible donor.

Question 111: A kidney transplant patient presents with fever, graft tenderness, and rising serum creatinine 10 days post-transplant. What is the most likely diagnosis?

Cyclosporine toxicity
Renal artery stenosis
Urinary tract infection
Acute cellular rejection (Correct answer)

Correct answer: Acute cellular rejection

Fever, graft tenderness, and rising creatinine in the first weeks post-transplant are classic signs of acute cellular rejection requiring biopsy confirmation.

Question 112: A kidney transplant recipient expresses guilt about their donor's death. What is the most therapeutic nursing response?

Acknowledge the patient's feelings, normalize them, and offer connection to counseling or donor family support programs (Correct answer)
Redirect the patient to focus on their recovery
Tell the patient they should feel grateful, not guilty
Explain to the patient that guilt is irrational

Correct answer: Acknowledge the patient's feelings, normalize them, and offer connection to counseling or donor family support programs

Survivor guilt is a recognized psychological response in transplant recipients; acknowledging feelings, normalizing them, and offering support resources is the therapeutic approach.

Question 113: A transplant recipient presents with fever, productive cough, and CT findings showing bilateral ground-glass opacities three months post-transplant. Which organism should be highest on the differential?

Mycobacterium tuberculosis
Streptococcus pneumoniae
Pneumocystis jirovecii (Correct answer)
Candida albicans

Correct answer: Pneumocystis jirovecii

Ground-glass opacities on CT combined with fever and cough in the 1–6 month post-transplant window are classic for PCP, especially if prophylaxis was discontinued or inadequate.

Question 114: Which finding in a liver transplant recipient at post-operative day 3 would be MOST concerning for primary non-function (PNF)?

ALT 500 IU/L with improving trend
Mild ascites on ultrasound
Serum bilirubin 3.2 mg/dL
AST >5,000 IU/L with coagulopathy and rising creatinine (Correct answer)

Correct answer: AST >5,000 IU/L with coagulopathy and rising creatinine

Markedly elevated transaminases (>5,000 IU/L) combined with coagulopathy and renal failure in the early post-transplant period are hallmarks of primary non-function, a graft-threatening emergency.

Question 115: The immunosuppression protocol known as induction therapy in transplantation refers to:

Withdrawal of immunosuppression to test for tolerance
Prophylactic antibiotics given before surgery
Long-term low-dose steroids used to prevent rejection
Intensive immunosuppression given perioperatively to reduce early rejection risk (Correct answer)

Correct answer: Intensive immunosuppression given perioperatively to reduce early rejection risk

Induction therapy uses potent immunosuppressive agents perioperatively to reduce the immune response when the allograft is most vulnerable to rejection.

Question 116: What is the primary role of HLA matching in solid organ transplantation?

To reduce the risk of immunologic rejection (Correct answer)
To determine organ size compatibility
To match blood types between donor and recipient
To assess organ function prior to transplant

Correct answer: To reduce the risk of immunologic rejection

HLA matching reduces the immunologic mismatch between donor and recipient, thereby lowering the risk of rejection.

Question 117: Which criterion must be met before a patient can be declared brain dead for organ donation purposes?

Absent pupillary reflexes alone
Irreversible cessation of all brain functions including the brainstem confirmed by two physicians (Correct answer)
Flat EEG for 24 hours
Cardiac arrest followed by resuscitation failure

Correct answer: Irreversible cessation of all brain functions including the brainstem confirmed by two physicians

Brain death requires irreversible cessation of all brain functions including the brainstem, confirmed by two qualified physicians using established clinical criteria.

Question 118: Which cytokine plays the most central role in T-cell activation during acute rejection?

IL-4
IL-10
IL-2 (Correct answer)
TNF-alpha

Correct answer: IL-2

IL-2 is the primary growth factor for T lymphocytes and plays a central role in T-cell proliferation during acute rejection episodes.

Question 119: What is the rationale for using triple immunosuppression therapy in most solid organ transplant protocols?

To block multiple pathways of immune activation while minimizing individual drug toxicity (Correct answer)
To ensure at least one drug is effective if one fails
To comply with UNOS regulations
To reduce cost by using lower doses of each drug

Correct answer: To block multiple pathways of immune activation while minimizing individual drug toxicity

Triple therapy targets different steps in the immune activation pathway, allowing lower doses of each agent and reducing toxicity while maintaining effective rejection prevention.

Question 120: Which of the following patients must be assigned to a surgical unit nurse who is transferred to the general unit?

New onset Type II- Diabetes
Emergency appendectomy (Correct answer)
Heart Failure
Thyrotoxicosis

Correct answer: Emergency appendectomy

A nurse transferred from a surgical unit would possess specialized skills and experience in surgical patient care. An emergency appendectomy patient requires post-operative care directly related to surgical recovery, making this assignment the most appropriate and within the nurse's immediate area of expertise compared to general medical conditions.

Question 121: Which term describes the phenomenon where a transplanted kidney does not function immediately after transplantation, requiring temporary dialysis?

Primary non-function
Chronic allograft nephropathy
Delayed graft function (DGF) (Correct answer)
Hyperacute rejection

Correct answer: Delayed graft function (DGF)

Delayed graft function (DGF) is when a transplanted kidney requires dialysis in the first week post-transplant, often due to ischemia-reperfusion injury.

Question 122: A post-liver transplant patient on prednisone and tacrolimus reports new-onset polydipsia, polyuria, and fatigue. Fasting glucose is 210 mg/dL. The MOST likely diagnosis is:

Adrenal insufficiency from steroid withdrawal
Tacrolimus nephrotoxicity
New-onset diabetes after transplantation (NODAT) (Correct answer)
Hepatitis C recurrence

Correct answer: New-onset diabetes after transplantation (NODAT)

New-onset diabetes after transplantation (NODAT) is common and is driven by glucocorticoid-induced insulin resistance and calcineurin inhibitor-mediated beta-cell toxicity.

Question 123: BK virus nephropathy in renal transplant recipients is managed primarily by which intervention?

Reducing immunosuppression to allow immune control of the virus (Correct answer)
Administering antiviral therapy with acyclovir
Increasing immunosuppression to control viral replication
Performing emergent nephrectomy of the graft

Correct answer: Reducing immunosuppression to allow immune control of the virus

BK nephropathy is managed by reducing immunosuppression to allow the recipient's immune system to control BK virus replication and limit nephropathy progression.

Question 124: Basiliximab is an induction agent that acts by blocking which interleukin receptor?

IL-4 receptor
IL-2 receptor (CD25) (Correct answer)
IL-6 receptor
IL-17 receptor

Correct answer: IL-2 receptor (CD25)

Basiliximab is a monoclonal antibody that blocks the IL-2 receptor (CD25) on activated T cells, preventing IL-2-driven proliferation.

Question 125: When a patient has a surgical site infection and purulent discharge, certain measures are advised.

Droplet
Contact and Droplet
Contact (Correct answer)
Airbone

Correct answer: Contact

A surgical site infection with purulent discharge indicates the presence of infectious microorganisms that can be transmitted through direct or indirect contact with the wound or contaminated surfaces. Therefore, contact precautions, including the use of gloves and gowns, are essential to prevent the spread of these pathogens to other patients or healthcare personnel.

Question 126: Which statement about calcineurin inhibitor-induced hypertension in transplant recipients is accurate?

It only occurs with cyclosporine, not tacrolimus
It resolves spontaneously within 6 months
It affects over 50% of transplant recipients and increases cardiovascular risk (Correct answer)
It occurs in less than 10% of transplant recipients

Correct answer: It affects over 50% of transplant recipients and increases cardiovascular risk

CNI-induced hypertension affects the majority of transplant recipients and significantly contributes to cardiovascular morbidity and mortality in this population.

Question 127: When should a transplant nurse administer the morning dose of tacrolimus relative to blood draws for trough levels?

After the blood draw is collected (Correct answer)
Before the blood draw is collected
It does not matter — timing has no effect on levels
Two hours after the blood draw

Correct answer: After the blood draw is collected

Tacrolimus trough levels must be drawn before administering the morning dose to accurately reflect the lowest drug concentration during the dosing interval.

Question 128: Calcineurin inhibitor nephrotoxicity can be distinguished from acute rejection by which finding?

Both show the same histologic pattern on biopsy
Rejection always causes anuria while CNI toxicity does not
CNI nephrotoxicity is associated with high drug levels and tubular vacuolization without significant inflammation (Correct answer)
CNI toxicity responds to pulse steroids

Correct answer: CNI nephrotoxicity is associated with high drug levels and tubular vacuolization without significant inflammation

CNI nephrotoxicity typically shows isometric tubular vacuolization on biopsy with elevated drug levels, while rejection shows inflammatory cell infiltration.

Question 129: During the first month post-transplant, which category of infections predominates and reflects the patient's pre-transplant health status and surgical complications?

Donor-derived and recipient pre-existing infections, plus surgical-site and nosocomial infections (Correct answer)
Opportunistic infections from immunosuppression such as CMV and PCP
Reactivation of latent viral infections like EBV and VZV
Community-acquired respiratory infections from environmental exposure

Correct answer: Donor-derived and recipient pre-existing infections, plus surgical-site and nosocomial infections

In the first month post-transplant, infections are similar to those in any post-surgical patient and reflect pre-existing conditions, donor-derived pathogens, and hospital-acquired organisms rather than immunosuppression-driven opportunists.

Question 130: Tacrolimus exerts its immunosuppressive effect by inhibiting which enzyme?

Calcineurin (Correct answer)
Inosine monophosphate dehydrogenase
Janus kinase
mTOR

Correct answer: Calcineurin

Tacrolimus inhibits calcineurin, preventing IL-2 transcription and thereby blocking T-cell activation and proliferation.

Question 131: Which immunosuppressant is most associated with new-onset diabetes after transplantation (NODAT)?

Mycophenolate mofetil
Azathioprine
Sirolimus
Tacrolimus (Correct answer)

Correct answer: Tacrolimus

Tacrolimus has the highest association with new-onset diabetes after transplantation (NODAT) due to its toxic effects on pancreatic beta cells and insulin secretion.

Question 132: A heart transplant patient is prescribed azathioprine. What lab value requires close monitoring?

Serum creatinine
Serum calcium
Serum potassium
Complete blood count (CBC) (Correct answer)

Correct answer: Complete blood count (CBC)

Azathioprine causes bone marrow suppression, so CBC monitoring is essential to detect leukopenia, thrombocytopenia, and anemia.

Question 133: BK polyomavirus nephropathy is a significant concern primarily in which type of solid organ transplant recipient?

Heart transplant recipients
Lung transplant recipients
Kidney transplant recipients (Correct answer)
Liver transplant recipients

Correct answer: Kidney transplant recipients

BK virus predominantly replicates in the urothelium and tubular epithelium, making kidney transplant recipients the population most at risk for BK nephropathy and graft loss.

Question 134: Which preservation solution is most commonly used for kidney preservation during cold storage?

Lactated Ringer's solution
Normal saline
Phosphate-buffered saline
University of Wisconsin (UW) solution (Correct answer)

Correct answer: University of Wisconsin (UW) solution

University of Wisconsin (UW) solution is the gold standard preservation fluid for kidney cold storage due to its composition that reduces ischemic cell damage.

Question 135: Which post-transplant complication is caused by lymphatic disruption during surgery and typically presents as a fluid collection near the kidney?

Urinoma
Lymphocele (Correct answer)
Hematoma
Perinephric abscess

Correct answer: Lymphocele

Lymphocele is a collection of lymphatic fluid that forms near the transplanted kidney due to lymphatic disruption during surgery and may compress the ureter or iliac vein.

Question 136: Which of the following is the most important factor in determining a patient's risk for rejection in the first year after transplant?

Cold ischemia time
Donor BMI
Recipient age
Number of HLA mismatches (Correct answer)

Correct answer: Number of HLA mismatches

The number of HLA mismatches between donor and recipient is the most important immunologic factor determining rejection risk in the first year post-transplant.

Question 137: In organ procurement, the term 'cold ischemia time' refers to:

Time from organ perfusion with cold preservation solution to revascularization in the recipient (Correct answer)
Time from recipient incision to graft reperfusion
Duration the organ spends in the operating room
Time from donor brain death declaration to incision

Correct answer: Time from organ perfusion with cold preservation solution to revascularization in the recipient

Cold ischemia time begins when the organ is flushed with cold preservation solution and ends when blood flow is restored to the organ in the recipient.

Question 138: Post-liver transplant, a patient develops fever, right upper quadrant pain, and elevated liver enzymes on day 10. Doppler ultrasound shows absent hepatic artery flow. This finding is MOST consistent with:

Hepatic artery thrombosis (Correct answer)
Primary non-function
Acute cellular rejection
Biliary anastomotic leak

Correct answer: Hepatic artery thrombosis

Hepatic artery thrombosis typically presents with fever, elevated enzymes, and absent arterial flow on Doppler in the early post-operative period.

Question 139: The insulin type that is most frequently used to manage hyperglycemia following heart transplantation is

Intermediate-acting NPH insulin, Humulin N, or Novolin N.
Short-acting regular insulin, such as Novolin R. (Correct answer)
Long-acting (glargine) Lantus insulin
Rapid-acting (lispro H) Humalog or (aspart) Novolog

Correct answer: Short-acting regular insulin, such as Novolin R.

Short-acting regular insulin (e.g., Novolin R) is frequently used to manage acute hyperglycemia in hospitalized patients, including those post-heart transplantation. Its predictable onset and duration allow for precise dose adjustments based on blood glucose levels, which is crucial when patients may have variable nutritional intake or are receiving corticosteroids that can significantly elevate blood sugar. Rapid-acting insulins might be too quick for consistent control in this setting, while intermediate and long-acting insulins are typically for basal coverage.

Question 140: A transplant recipient asks if they can get a flu shot. What is the most accurate nursing response?

Inactivated influenza vaccines are recommended annually; live vaccines are contraindicated (Correct answer)
Live attenuated vaccines are preferred for better immunity
Vaccines are unnecessary because immunosuppression prevents flu
All vaccines are contraindicated after transplantation

Correct answer: Inactivated influenza vaccines are recommended annually; live vaccines are contraindicated

Transplant recipients should receive inactivated vaccines (not live), including annual influenza vaccine, because live vaccines can cause disease in immunocompromised patients.

Question 141: Which organization manages the national deceased donor organ allocation system in the United States?

United Network for Organ Sharing (UNOS) (Correct answer)
American Society of Transplantation (AST)
Centers for Medicare & Medicaid Services (CMS)
Joint Commission on Accreditation

Correct answer: United Network for Organ Sharing (UNOS)

UNOS manages the national Organ Procurement and Transplantation Network (OPTN) and oversees policies for organ allocation to ensure equitable distribution.

Question 142: A cLean-catch midstream urine specimen for urinalysis

18 to 25 (Correct answer)
65 to 75
50 to 65
25 to 50

Correct answer: 18 to 25

This question is incomplete and lacks context, making a direct explanation for the answer '18 to 25' difficult in relation to 'A clean-catch midstream urine specimen for urinalysis'. Assuming there is missing information, this age range might refer to the typical age of kidney transplant recipients or donors, or perhaps a demographic group where certain medical conditions are prevalent. Without the full question, any explanation linking the prompt to the answer is speculative.

Question 143: Which immunosuppressant drug class works by blocking calcineurin to prevent T-cell activation?

Corticosteroids
Calcineurin inhibitors (Correct answer)
mTOR inhibitors
Antimetabolites

Correct answer: Calcineurin inhibitors

Calcineurin inhibitors such as tacrolimus and cyclosporine block calcineurin, preventing IL-2 production and T-cell proliferation.

Question 144: End-stage liver disease and uremia are both related with a metabolic imbalance called

Respiratory alkalosis
Metabolic alkalosis
Metabolic acidosis (Correct answer)
Respiratory acidosis

Correct answer: Metabolic acidosis

Both end-stage liver disease and uremia (kidney failure) are strongly associated with metabolic acidosis. In liver disease, the impaired liver cannot adequately metabolize acidic byproducts, contributing to acid accumulation. In uremia, the kidneys lose their ability to excrete acids and reabsorb bicarbonate, leading to a buildup of acid in the blood. This results in a decreased blood pH, characteristic of metabolic acidosis.

Question 145: What does 'first-person consent' mean in the context of organ donation in the US?

Family must provide first consent before a donor registry is consulted
An individual's documented decision to donate (e.g., on a driver's license) is legally binding (Correct answer)
Only next-of-kin can authorize donation
A physician must obtain consent before any family member

Correct answer: An individual's documented decision to donate (e.g., on a driver's license) is legally binding

First-person consent means a person's registered decision to donate is legally binding and cannot be overridden by family, though family collaboration is still encouraged.

Question 146: Which transplant patient situation requires mandatory referral to social work?

Patient has questions about returning to work
Patient asks questions about medication side effects
Patient requests a second medical opinion
Patient expresses inability to afford medications or housing instability (Correct answer)

Correct answer: Patient expresses inability to afford medications or housing instability

Financial instability and housing insecurity are social determinants that directly threaten medication adherence and graft survival, requiring urgent social work intervention.

Question 147: What is the first-line treatment for acute cellular rejection confirmed by biopsy?

Increase maintenance tacrolimus dose only
Start rituximab infusion
Initiate plasmapheresis
High-dose intravenous corticosteroids (pulse steroids) (Correct answer)

Correct answer: High-dose intravenous corticosteroids (pulse steroids)

High-dose IV methylprednisolone (pulse steroids) is the first-line treatment for acute cellular rejection, typically given for 3–5 days.

Question 148: A nurse urges a post-operative patient to cough and take deep breaths. The nurse is taking this measure since she is aware that holding onto pulmonary secretions might result in

Pneumonia (Correct answer)
Imbalance in fluid
Carbon dioxide retention
Pulmonary edema

Correct answer: Pneumonia

Post-operative patients are at increased risk for pulmonary complications, particularly pneumonia. When pulmonary secretions are retained, they can create an environment conducive to bacterial growth and lead to atelectasis, which can progress to pneumonia. Encouraging coughing and deep breathing helps clear these secretions and expand the lungs, preventing such infections.

Question 149: How long after transplantation should female recipients wait before attempting pregnancy?

At least 1–2 years, when graft function is stable and immunosuppression is minimized (Correct answer)
Pregnancy is permanently contraindicated after transplant
12 months
6 months

Correct answer: At least 1–2 years, when graft function is stable and immunosuppression is minimized

Transplant guidelines recommend waiting 1–2 years post-transplant until graft function is stable and immunosuppression is at maintenance levels before attempting pregnancy.

Question 150: A transplant recipient is prescribed trimethoprim-sulfamethoxazole (TMP-SMX) prophylaxis. The PRIMARY indication for this medication in this population is:

Prevention of cytomegalovirus infection
Prophylaxis against Pneumocystis jirovecii pneumonia (PCP) (Correct answer)
Prevention of fungal esophagitis
Treatment of bacterial UTI

Correct answer: Prophylaxis against Pneumocystis jirovecii pneumonia (PCP)

TMP-SMX is the drug of choice for Pneumocystis jirovecii pneumonia prophylaxis in immunosuppressed transplant recipients, typically given for 6-12 months post-transplant.

Question 151: C4d deposition on peritubular capillaries is a hallmark finding in which type of renal transplant rejection?

Antibody-mediated rejection (Correct answer)
Acute cellular rejection
Hyperacute rejection
Chronic cellular rejection

Correct answer: Antibody-mediated rejection

C4d deposition on peritubular capillaries is a pathologic marker of antibody-mediated rejection, indicating complement activation by donor-specific antibodies.

Question 152: Post-transplant lymphoproliferative disorder (PTLD) is MOST strongly associated with which viral infection?

Hepatitis C virus (HCV)
BK polyomavirus
Cytomegalovirus (CMV)
Epstein-Barr virus (EBV) (Correct answer)

Correct answer: Epstein-Barr virus (EBV)

PTLD is strongly associated with EBV-driven B-cell proliferation occurring under immunosuppression, particularly in EBV-seronegative recipients of EBV-seropositive donors.

Question 153: A drop in central venous pressure after heart transplantation may be due to

Cardiac tamponade
Thombus obstruction
Increased intravascular volume
Low intravascular volume (Correct answer)

Correct answer: Low intravascular volume

Central Venous Pressure (CVP) reflects the pressure in the right atrium and is an indicator of right ventricular preload. A drop in CVP typically signifies decreased preload, meaning there is insufficient blood volume returning to the heart. The most common cause of decreased intravascular volume (hypovolemia), which can result from bleeding, dehydration, or inadequate fluid replacement post-surgery. Conditions like cardiac tamponade or increased intravascular volume would generally cause an *increase* in CVP.

Question 154: What is the recommended prophylaxis for Pneumocystis jirovecii pneumonia (PJP) in solid organ transplant recipients?

Fluconazole
Trimethoprim-sulfamethoxazole (TMP-SMX) (Correct answer)
Voriconazole
Acyclovir

Correct answer: Trimethoprim-sulfamethoxazole (TMP-SMX)

TMP-SMX (Bactrim) is the first-line prophylaxis for PJP in transplant recipients and also provides coverage against Toxoplasma and some urinary tract pathogens.

Question 155: A liver transplant patient on mycophenolate mofetil (MMF) reports persistent diarrhea. The nurse should first:

Reduce tacrolimus trough level
Switch to enteric-coated mycophenolate sodium to reduce GI side effects (Correct answer)
Add loperamide and continue MMF unchanged
Stop MMF immediately

Correct answer: Switch to enteric-coated mycophenolate sodium to reduce GI side effects

Enteric-coated mycophenolate sodium delivers the drug to the small intestine, reducing upper GI side effects including diarrhea.

Question 156: Which drug interaction is most clinically significant for transplant patients taking tacrolimus?

CYP3A4 inhibitors such as fluconazole significantly increase tacrolimus levels (Correct answer)
Vitamin C supplementation
Concurrent use of beta blockers
Concurrent use of aspirin

Correct answer: CYP3A4 inhibitors such as fluconazole significantly increase tacrolimus levels

Tacrolimus is metabolized by CYP3A4, so inhibitors like azole antifungals can dramatically increase tacrolimus blood levels, risking toxicity.

Question 157: Which of the following cytomegalovirus (CMV) serostatus combinations carries the HIGHEST risk for CMV disease post-transplant?

Donor positive / Recipient positive (D+/R+)
Donor negative / Recipient negative (D-/R-)
Donor negative / Recipient positive (D-/R+)
Donor positive / Recipient negative (D+/R-) (Correct answer)

Correct answer: Donor positive / Recipient negative (D+/R-)

A CMV-seropositive donor transplanted into a seronegative recipient (D+/R-) poses the highest risk because the recipient has no pre-existing immunity.

Question 158: Which of the following is an absolute contraindication to living kidney donation?

Single kidney donor with a GFR of 90 mL/min/1.73m²
Age over 55 years
Active malignancy with metastatic disease (Correct answer)
BMI of 28 kg/m²

Correct answer: Active malignancy with metastatic disease

Active malignancy, particularly with metastatic potential, is an absolute contraindication to living donation due to the risk of transmitting cancer to the immunosuppressed recipient.

Question 159: Which type of rejection occurs within minutes to hours after transplantation and is caused by preformed antibodies?

Hyperacute rejection (Correct answer)
Accelerated acute rejection
Chronic rejection
Acute cellular rejection

Correct answer: Hyperacute rejection

Hyperacute rejection occurs within minutes to hours due to preformed recipient antibodies against donor antigens, causing immediate graft failure.

Question 160: Surgery for a right leg allograft is scheduled for a patient with extensive burns. What aspects of this patient's post-operative treatment plan must be considered?

Keep the patient in prone position
Keep blanket above the right leg
Keep the right leg flat
Immobilize and elevate the right leg (Correct answer)

Correct answer: Immobilize and elevate the right leg

For an allograft (tissue transplant) like a skin graft, proper post-operative care is crucial for graft survival. Immobilizing the affected limb prevents movement that could dislodge the graft, while elevating it helps reduce swelling and promotes venous return, both of which are vital for successful graft take and healing.

Question 161: Which of the following is a classic sign of acute rejection in a kidney transplant recipient?

Fever and skin rash only
Polyuria and hypotension
Hypoglycemia and jaundice
Oliguria, rising creatinine, and graft tenderness (Correct answer)

Correct answer: Oliguria, rising creatinine, and graft tenderness

Acute kidney rejection typically presents with decreased urine output, rising serum creatinine, and tenderness over the transplanted kidney.

Question 162: What is the primary purpose of the UNOS (United Network for Organ Sharing)?

Funding transplant research
Managing the national organ transplant system and waitlist (Correct answer)
Performing transplant surgeries
Training transplant nurses

Correct answer: Managing the national organ transplant system and waitlist

UNOS manages the national organ transplant system under contract with HRSA, maintaining the waitlist and matching policies.

Question 163: A transplant nurse uses the 'teach-back' method during patient education. What does this involve?

Having the patient take a written test
Asking the patient to explain or demonstrate what they learned to confirm understanding (Correct answer)
Teaching the patient and then reviewing the same content the next day
Teaching the same material multiple times in a row

Correct answer: Asking the patient to explain or demonstrate what they learned to confirm understanding

Teach-back involves asking patients to explain information in their own words or demonstrate skills, confirming comprehension rather than assuming it.

Question 164: Mycophenolate mofetil (MMF) inhibits which enzyme to suppress lymphocyte proliferation?

Calcineurin
Dihydrofolate reductase
Inosine monophosphate dehydrogenase (IMPDH) (Correct answer)
mTOR

Correct answer: Inosine monophosphate dehydrogenase (IMPDH)

MMF inhibits IMPDH, blocking de novo purine synthesis which lymphocytes rely on exclusively for proliferation, making it lymphocyte-selective.

Question 165: Which factor most significantly limits the acceptable cold ischemia time for heart transplantation compared to kidney transplantation?

Heart size compatibility requirements
The heart's sensitivity to ischemia makes the acceptable cold ischemia time much shorter (4–6 hours vs. 24–36 hours) (Correct answer)
Cardiac preservation solutions are less effective
Heart transplants require more extensive HLA matching

Correct answer: The heart's sensitivity to ischemia makes the acceptable cold ischemia time much shorter (4–6 hours vs. 24–36 hours)

The heart is highly sensitive to ischemic injury, limiting acceptable cold ischemia time to approximately 4–6 hours, compared to 24–36 hours for kidneys.

Question 166: Cold ischemia time refers to which period in organ transplantation?

Time from cross-clamp to organ reperfusion in the recipient
Time from brain death declaration to procurement
Time between organ procurement and transplantation into the recipient (Correct answer)
Time the organ spends in warm conditions before preservation

Correct answer: Time between organ procurement and transplantation into the recipient

Cold ischemia time is the period from organ procurement and cooling to transplantation and reperfusion, during which the organ is preserved in cold storage solution.

Question 167: Leukocyte reduction in place of plasma removal. employed to reject.

Blood transfusion
Hemolysis
Electrophoresis
Plasmapheresis (Correct answer)

Correct answer: Plasmapheresis

Plasmapheresis is a medical procedure that involves removing blood plasma from the body, often to remove harmful substances or components. While its primary goal is plasma removal, leukocyte reduction (removing white blood cells) can be a related or complementary process in blood component therapy or preparation. The question implies a procedure where components are removed to 'reject' something, aligning with the concept of removing specific blood elements.

Question 168: What does the term 'crossmatch' refer to in transplantation?

Matching blood types between donor and recipient
Comparing organ size compatibility
Evaluating HLA antigen similarity
Testing recipient serum against donor lymphocytes for preformed antibodies (Correct answer)

Correct answer: Testing recipient serum against donor lymphocytes for preformed antibodies

A crossmatch tests whether recipient serum contains antibodies that react against donor cells, predicting hyperacute rejection risk.

Question 169: A transplant patient on tacrolimus and TMP-SMX develops hyperkalemia. What is the most likely cause?

Tacrolimus-induced hyperaldosteronism
Addison's disease triggered by immunosuppression
Dietary potassium excess alone
Combined effect of tacrolimus and TMP-SMX on renal potassium excretion (Correct answer)

Correct answer: Combined effect of tacrolimus and TMP-SMX on renal potassium excretion

Both tacrolimus and TMP-SMX reduce renal potassium excretion through different mechanisms, and their combination commonly causes hyperkalemia in transplant recipients.

Question 170: A liver transplant patient develops ascites and elevated liver enzymes 2 weeks post-operatively. What complication should be suspected first?

Acute rejection
Bile leak
Hepatic artery thrombosis (Correct answer)
Drug-induced hepatotoxicity

Correct answer: Hepatic artery thrombosis

Hepatic artery thrombosis is a serious early complication of liver transplant that compromises biliary and hepatic perfusion, presenting with liver dysfunction and ascites.

Question 171: A living-donor kidney transplant is being planned. Which statement BEST describes the nurse's role in donor evaluation and advocacy?

The nurse coordinates surgery scheduling as the primary role
The nurse determines donor eligibility based on creatinine alone
The nurse focuses solely on the recipient's well-being and clinical needs
The nurse serves as an independent donor advocate, ensuring the donor's consent is fully informed, voluntary, and free of coercion (Correct answer)

Correct answer: The nurse serves as an independent donor advocate, ensuring the donor's consent is fully informed, voluntary, and free of coercion

The transplant nurse and the independent donor advocate (IDA) role ensure that living donors are fully informed of all risks and that donation is voluntary and uncoerced, protecting donor autonomy.

Question 172: A pediatric liver transplant patient is transitioning to adult care. Which nursing intervention is MOST critical for successful transition?

Transfer all medical records before age 18 and end pediatric visits
Structured transition program teaching self-management, medication adherence, and adult healthcare navigation starting at age 12–14 (Correct answer)
Have parents continue managing medications indefinitely to ensure adherence
Delay transition until the patient requests it

Correct answer: Structured transition program teaching self-management, medication adherence, and adult healthcare navigation starting at age 12–14

Early, structured transition programs that gradually transfer self-management responsibility are evidence-based and reduce the high rate of graft loss seen during adolescent transition to adult care.

Question 173: Which statement about returning to work after kidney transplantation is most accurate?

All transplant recipients are permanently disabled and cannot work
Return to work is not recommended due to infection risk in workplace environments
Most recipients can return to work within 3–6 months if recovery is uncomplicated, depending on job type and graft function (Correct answer)
Recipients should return to work within 2 weeks to maintain normalcy

Correct answer: Most recipients can return to work within 3–6 months if recovery is uncomplicated, depending on job type and graft function

Most kidney transplant recipients with uncomplicated recovery can return to work within 3–6 months, though timeline varies by physical job demands and individual recovery.

Question 174: What is the purpose of machine perfusion technology in organ preservation?

To continuously perfuse the organ with oxygenated solution, reducing ischemic injury and improving viability (Correct answer)
To remove pathogens from the donor organ
To precondition the organ with immunosuppressive agents
To perform pre-implantation biopsy

Correct answer: To continuously perfuse the organ with oxygenated solution, reducing ischemic injury and improving viability

Machine perfusion continuously delivers oxygenated preservation solution to the organ, reducing cold ischemia injury and allowing viability assessment beyond static cold storage.

Certified Clinical Transplant Nurse (CCTN)

The CCTN certification, administered by the American Board for Transplant Certification (ABTC), validates nursing expertise in pre- and post-transplant care, immunosuppression management, and long-term transplant patient support across solid organ transplantation.

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