Certified Clinical Transplant Nurse (CCTN) — Questions and Answers

Question 1: Which statement is TRUE regarding expanded criteria donors (ECD) for kidney transplantation?

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

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 2: A patient awaiting a liver transplant has a MELD score of 38. What does this indicate?

Low disease severity with stable liver function
Candidate is not yet sick enough for transplant
Very high 90-day mortality risk and high urgency for transplant (Correct answer)
Score has no role in organ allocation

Correct answer: Very high 90-day mortality risk and high urgency for transplant

The MELD (Model for End-Stage Liver Disease) score predicts 90-day mortality; a score of 38 indicates very high urgency and priority on the waitlist.

Question 3: Which immunosuppressant is most associated with new-onset diabetes after transplantation (NODAT)?

Mycophenolate mofetil
Tacrolimus (Correct answer)
Sirolimus
Azathioprine

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

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

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

Hyperkalemia and hypomagnesemia (Correct answer)
Hypermagnesemia
Hyponatremia
Hypercalcemia

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

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

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 7: 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
Hepatitis C recurrence
New-onset diabetes after transplantation (NODAT) (Correct answer)
Tacrolimus nephrotoxicity

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

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

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

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

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 10: 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)
Two hours after the blood draw
Before the blood draw is collected
It does not matter — timing has no effect on levels

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

Valganciclovir
Fluconazole
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 12: Leukocyte reduction in place of plasma removal. employed to reject.

Plasmapheresis (Correct answer)
Electrophoresis
Blood transfusion
Hemolysis

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

Pregnancy is permanently contraindicated after transplant
12 months
At least 1–2 years, when graft function is stable and immunosuppression is minimized (Correct answer)
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 14: Which statement about returning to work after kidney transplantation is most accurate?

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
Return to work is not recommended due to infection risk in workplace environments
All transplant recipients are permanently disabled and cannot work

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

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

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

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

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

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

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

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

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

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

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

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

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 21: 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:

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

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 22: Which of the following is a contraindication to living kidney donation?

BMI of 27
Uncontrolled diabetes mellitus (Correct answer)
Single episode of resolved UTI
Controlled well-managed hypertension with no end-organ damage in a donor over 18

Correct answer: Uncontrolled diabetes mellitus

Uncontrolled diabetes mellitus is a contraindication to living donation because it significantly increases the donor's risk of future kidney failure.

Question 23: A liver transplant recipient reports drinking alcohol occasionally. What is the most appropriate nursing response?

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

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

Uveitis
Peripheral neuropathy
Impaired wound healing and hyperlipidemia (Correct answer)
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 25: Cold ischemia time refers to which period in organ transplantation?

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

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

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

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

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

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

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

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 29: 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?

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

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 30: Mycophenolate mofetil (MMF) works primarily by inhibiting which enzyme?

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

Correct answer: Inosine monophosphate dehydrogenase (IMPDH)

MMF inhibits IMPDH, blocking de novo purine synthesis and selectively suppressing lymphocyte proliferation.

Question 31: 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
Connect the patient with social work, patient assistance programs, and transplant coordinators to address financial barriers (Correct answer)
Advise the patient to skip non-critical medications to save money
Document the concern and continue without intervention

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 32: A transplant recipient returning from a trip to the Ohio and Mississippi River valleys presents with fever, night sweats, and mediastinal lymphadenopathy. Which endemic fungal infection should be suspected?

Cryptococcus neoformans
Coccidioides immitis
Aspergillus fumigatus
Histoplasma capsulatum (Correct answer)

Correct answer: Histoplasma capsulatum

Histoplasma capsulatum is endemic to the Ohio and Mississippi River valleys and can cause severe disseminated disease in immunocompromised transplant recipients following environmental exposure.

Question 33: A cLean-catch midstream urine specimen for urinalysis

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

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.

Questions

35 min

Time Limit

70%

To Pass

Checking for saved progress...

Exam Rules

You can skip questions and return to them later
Flag questions for review before submitting
No feedback shown until you submit the entire exam
Unanswered questions count as wrong — answer everything
10 pretest questions are mixed in and don't affect your score
Timer auto-submits when time runs out
Your progress is auto-saved every 30 seconds