CCTC NATCO EXAM 200 ACTUAL QUESTIONS AND
CORRECT ANSWERS WITH RATIONALE LATEST 2026
ALREADY GRADED A+
This comprehensive set of 200 unique, multiple-choice questions is specifically
designed for the CCTC (Certified Clinical Transplant Coordinator) exam
administered by the American Board for Transplant Certification (ABTC). It
rigorously covers all core content areas essential for transplant coordination
practice. Key topics include donor management and brain death
determination, organ allocation policies (OPTN/UNOS, MELD, KDPI),
transplant immunology (HLA, crossmatching, PRA), and immunosuppression
pharmacology. The questions are structured as clinical vignettes to simulate
real-world scenarios encountered in transplant coordination. Each item
includes a correct answer and a detailed, evidence-based rationale to reinforce
learning and critical thinking. This resource is ideal for candidates preparing
for the NATCO review course and the CCTC certification examination.
1. What is the primary physiological trigger for the "autonomic storm" following
severe brain injury?
A) Hypoxia
B) Loss of cortical inhibition of the hypothalamus
C) Systemic hypotension
D) Hyperthermia
Answer: B
Rationale: Increased intracranial pressure (ICP) causes brainstem herniation,
leading to a loss of cortical inhibition and a massive sympathetic surge. This
"autonomic storm" results in hypertension, tachycardia, and vasoconstriction.
2. Which of the following is an absolute contraindication to performing the apnea
test?
A) Core temperature < 36°C (96.8°F)
B) Systolic blood pressure < 90 mmHg
C) PaCO2 < 35 mmHg
D) All of the above
Answer: D
, Rationale: A valid and safe apnea test requires the patient to be
hemodynamically stable with a core temperature ≥ 36°C, SBP ≥ 90 mmHg,
euvolemia, and a baseline PaCO2 of 35-45 mmHg.
3. A positive apnea test, confirming brain death, is defined as:
A) PaCO2 ≥ 60 mmHg or a 20 mmHg increase from baseline with no
respiratory effort
B) PaO2 < 60 mmHg
C) SpO2 < 88%
D) Heart rate drop > 20%
Answer: A
Rationale: A positive apnea test confirms brain death by demonstrating that the
respiratory center fails to respond to the primary stimulus of hypercapnia (PaCO2
≥ 60 mmHg or a 20 mmHg increase from baseline), evidenced by the absence of
any respiratory effort.
4. Which ancillary test is most commonly used when the clinical exam or apnea
test cannot be safely completed?
A) EEG
B) Transcranial Doppler
C) Four-vessel cerebral angiography
D) Nuclear medicine cerebral blood flow scan
Answer: D
Rationale: The radionuclide cerebral blood flow scan (nuclear scan), showing
the "hollow skull sign" (absence of intracranial blood flow), is the most widely
accepted and utilized ancillary test in this scenario.
5. Which hormonal replacement is typically initiated to treat diabetes insipidus
(DI) in the brain-dead organ donor?
A) Hydrocortisone
B) Levothyroxine
C) Desmopressin (DDAVP)
D) Insulin
Answer: C
Rationale: Brain death causes posterior pituitary failure, leading to DI.
Desmopressin (DDAVP), a vasopressin analog, is the treatment of choice to
concentrate urine and prevent severe hypernatremia.
6. The target urine output for a brain-dead organ donor is:
A) 0.5 - 1 mL/kg/hr
, B) 1 - 3 mL/kg/hr
C) 3 - 5 mL/kg/hr
D) > 5 mL/kg/hr
Answer: B
Rationale: Maintaining urine output between 1-3 mL/kg/hr ensures adequate
organ perfusion without causing excessive fluid depletion or electrolyte
imbalances.
7. Which vasopressor is considered the first-line choice for donor hemodynamic
support because it also replaces a hormone that is often deficient in brain death?
A) Norepinephrine
B) Epinephrine
C) Vasopressin
D) Dopamine
Answer: C
Rationale: Vasopressin is often deficient in brain death. It acts as a vasopressor
to increase systemic vascular resistance (SVR) and blood pressure, while
simultaneously replacing the missing antidiuretic hormone.
8. The "hormonal resuscitation" cocktail for a brain-dead donor typically includes
which of the following?
A) Vasopressin, Methylprednisolone, Levothyroxine, Insulin
B) Epinephrine, Hydrocortisone, T3, Glucagon
C) Norepinephrine, Dexamethasone, T4, Metformin
D) Dopamine, Prednisone, Calcitonin, Glipizide
Answer: A
Rationale: This cocktail replaces hormones that are often deficient (vasopressin,
cortisol, thyroid hormone) and manages hyperglycemia (insulin) to improve organ
yield and function.
9. Which of the following is an absolute exclusion criterion for organ donation due
to infection risk?
A) Urinary tract infection
B) Pneumonia
C) Rabies
D) Candidemia
Answer: C
Rationale: Rabies is an absolute contraindication to organ donation due to the
high risk of transmission and fatal outcomes in immunosuppressed recipients.
, 10. Nucleic Acid Testing (NAT) is required for all donors to screen for:
A) HIV, HCV, HBV
B) CMV, EBV, Syphilis
C) Toxoplasmosis, Malaria
D) West Nile Virus, Chagas
Answer: A
Rationale: NAT is mandated for all donors to screen for HIV, Hepatitis C
(HCV), and Hepatitis B (HBV) to reduce the risk of transmission to recipients.
11. Which of the following diagnoses is a relative contraindication to heart
transplant?
A) HCVAb positive
B) Sarcoidosis
C) Pulmonary hypertension
D) Hemochromatosis
Answer: C
Rationale: Fixed, severe pulmonary hypertension is a relative contraindication
because the right ventricle of a donor heart may not be able to adapt to the high
pressure, leading to right-sided heart failure.
12. Which of the following medications can cause increased appetite, visual
changes, and decreased bone density?
A) Prednisone
B) Sirolimus
C) Tacrolimus
D) Bactrim
Answer: A
Rationale: Prednisone, a corticosteroid, has numerous side effects including
increased appetite, visual changes (cataracts), and decreased bone density
(osteoporosis).
13. An enteric-drained pancreas recipient, 1-month post-transplant, calls the
coordinator to report fever and abdominal pain. CT reveals an intra-abdominal
fluid collection. Labs show WBC 18 and amylase 200. The coordinator should
anticipate which of the following as the next step?
A) Colonoscopy
B) Biopsy of the pancreas
C) Percutaneous needle aspiration
D) KUB (Kidney, Ureter, Bladder X-ray)
Answer: C
CORRECT ANSWERS WITH RATIONALE LATEST 2026
ALREADY GRADED A+
This comprehensive set of 200 unique, multiple-choice questions is specifically
designed for the CCTC (Certified Clinical Transplant Coordinator) exam
administered by the American Board for Transplant Certification (ABTC). It
rigorously covers all core content areas essential for transplant coordination
practice. Key topics include donor management and brain death
determination, organ allocation policies (OPTN/UNOS, MELD, KDPI),
transplant immunology (HLA, crossmatching, PRA), and immunosuppression
pharmacology. The questions are structured as clinical vignettes to simulate
real-world scenarios encountered in transplant coordination. Each item
includes a correct answer and a detailed, evidence-based rationale to reinforce
learning and critical thinking. This resource is ideal for candidates preparing
for the NATCO review course and the CCTC certification examination.
1. What is the primary physiological trigger for the "autonomic storm" following
severe brain injury?
A) Hypoxia
B) Loss of cortical inhibition of the hypothalamus
C) Systemic hypotension
D) Hyperthermia
Answer: B
Rationale: Increased intracranial pressure (ICP) causes brainstem herniation,
leading to a loss of cortical inhibition and a massive sympathetic surge. This
"autonomic storm" results in hypertension, tachycardia, and vasoconstriction.
2. Which of the following is an absolute contraindication to performing the apnea
test?
A) Core temperature < 36°C (96.8°F)
B) Systolic blood pressure < 90 mmHg
C) PaCO2 < 35 mmHg
D) All of the above
Answer: D
, Rationale: A valid and safe apnea test requires the patient to be
hemodynamically stable with a core temperature ≥ 36°C, SBP ≥ 90 mmHg,
euvolemia, and a baseline PaCO2 of 35-45 mmHg.
3. A positive apnea test, confirming brain death, is defined as:
A) PaCO2 ≥ 60 mmHg or a 20 mmHg increase from baseline with no
respiratory effort
B) PaO2 < 60 mmHg
C) SpO2 < 88%
D) Heart rate drop > 20%
Answer: A
Rationale: A positive apnea test confirms brain death by demonstrating that the
respiratory center fails to respond to the primary stimulus of hypercapnia (PaCO2
≥ 60 mmHg or a 20 mmHg increase from baseline), evidenced by the absence of
any respiratory effort.
4. Which ancillary test is most commonly used when the clinical exam or apnea
test cannot be safely completed?
A) EEG
B) Transcranial Doppler
C) Four-vessel cerebral angiography
D) Nuclear medicine cerebral blood flow scan
Answer: D
Rationale: The radionuclide cerebral blood flow scan (nuclear scan), showing
the "hollow skull sign" (absence of intracranial blood flow), is the most widely
accepted and utilized ancillary test in this scenario.
5. Which hormonal replacement is typically initiated to treat diabetes insipidus
(DI) in the brain-dead organ donor?
A) Hydrocortisone
B) Levothyroxine
C) Desmopressin (DDAVP)
D) Insulin
Answer: C
Rationale: Brain death causes posterior pituitary failure, leading to DI.
Desmopressin (DDAVP), a vasopressin analog, is the treatment of choice to
concentrate urine and prevent severe hypernatremia.
6. The target urine output for a brain-dead organ donor is:
A) 0.5 - 1 mL/kg/hr
, B) 1 - 3 mL/kg/hr
C) 3 - 5 mL/kg/hr
D) > 5 mL/kg/hr
Answer: B
Rationale: Maintaining urine output between 1-3 mL/kg/hr ensures adequate
organ perfusion without causing excessive fluid depletion or electrolyte
imbalances.
7. Which vasopressor is considered the first-line choice for donor hemodynamic
support because it also replaces a hormone that is often deficient in brain death?
A) Norepinephrine
B) Epinephrine
C) Vasopressin
D) Dopamine
Answer: C
Rationale: Vasopressin is often deficient in brain death. It acts as a vasopressor
to increase systemic vascular resistance (SVR) and blood pressure, while
simultaneously replacing the missing antidiuretic hormone.
8. The "hormonal resuscitation" cocktail for a brain-dead donor typically includes
which of the following?
A) Vasopressin, Methylprednisolone, Levothyroxine, Insulin
B) Epinephrine, Hydrocortisone, T3, Glucagon
C) Norepinephrine, Dexamethasone, T4, Metformin
D) Dopamine, Prednisone, Calcitonin, Glipizide
Answer: A
Rationale: This cocktail replaces hormones that are often deficient (vasopressin,
cortisol, thyroid hormone) and manages hyperglycemia (insulin) to improve organ
yield and function.
9. Which of the following is an absolute exclusion criterion for organ donation due
to infection risk?
A) Urinary tract infection
B) Pneumonia
C) Rabies
D) Candidemia
Answer: C
Rationale: Rabies is an absolute contraindication to organ donation due to the
high risk of transmission and fatal outcomes in immunosuppressed recipients.
, 10. Nucleic Acid Testing (NAT) is required for all donors to screen for:
A) HIV, HCV, HBV
B) CMV, EBV, Syphilis
C) Toxoplasmosis, Malaria
D) West Nile Virus, Chagas
Answer: A
Rationale: NAT is mandated for all donors to screen for HIV, Hepatitis C
(HCV), and Hepatitis B (HBV) to reduce the risk of transmission to recipients.
11. Which of the following diagnoses is a relative contraindication to heart
transplant?
A) HCVAb positive
B) Sarcoidosis
C) Pulmonary hypertension
D) Hemochromatosis
Answer: C
Rationale: Fixed, severe pulmonary hypertension is a relative contraindication
because the right ventricle of a donor heart may not be able to adapt to the high
pressure, leading to right-sided heart failure.
12. Which of the following medications can cause increased appetite, visual
changes, and decreased bone density?
A) Prednisone
B) Sirolimus
C) Tacrolimus
D) Bactrim
Answer: A
Rationale: Prednisone, a corticosteroid, has numerous side effects including
increased appetite, visual changes (cataracts), and decreased bone density
(osteoporosis).
13. An enteric-drained pancreas recipient, 1-month post-transplant, calls the
coordinator to report fever and abdominal pain. CT reveals an intra-abdominal
fluid collection. Labs show WBC 18 and amylase 200. The coordinator should
anticipate which of the following as the next step?
A) Colonoscopy
B) Biopsy of the pancreas
C) Percutaneous needle aspiration
D) KUB (Kidney, Ureter, Bladder X-ray)
Answer: C
