CCTC NATCO EXAM: NEWEST 300
QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS)
This comprehensive 300-question study guide is designed for the Certified Clinical
Transplant Coordinator (CCTC) exam administered by NATCO/ABTC. It covers the
core domains: Organ Donation, Immunology, Transplant Medicine, UNOS Policies,
Psychosocial/Ethics, and Program Administration.
Domain 1: Organ Donation & Donor Management
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 ICP causes brainstem herniation, leading to loss
of cortical inhibition and a massive sympathetic surge (autonomic storm), causing
hypertension, tachycardia, and vasoconstriction.
2. Which of the following is an absolute contraindication to the apnea test?
A) Core temperature < 36°C (96.8°F) B) Systolic BP < 90 mmHg C) PaCO2 < 35
mmHg D) All of the above
Answer: D | Rationale: The apnea test requires core temp ≥ 36°C, SBP ≥ 90
mmHg, euvolemia, and a baseline PaCO2 of 35-45 mmHg to be valid and safe.
3. A positive apnea test is defined as:
A) PaCO2 ≥ 60 mmHg or a 20 mmHg increase from baseline with no respiratory
effort
B) PaO2 < 60 mmHg B) SpO2 < 88% C) Heart rate drop > 20%
Answer: A | Rationale: A positive apnea test confirms brain death by
demonstrating hypercapnia (the primary respiratory drive stimulus) without any
respiratory effort.
4. Which ancillary test is most commonly used when 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)
Page 1 of 60
,showing intracranial absence of blood flow ("hollow skull sign") is the most widely
accepted and utilized ancillary test.
5. Which hormonal replacement is typically initiated to treat diabetes insipidus
in the brain-dead donor?
A) Hydrocortisone B) Levothyroxine C) Desmopressin (DDAVP) D) Insulin
Answer: C | Rationale: Brain death causes posterior pituitary failure, leading to DI.
DDAVP (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 first-line for donor hemodynamic support
because it also replaces a deficient hormone?
A) Norepinephrine B) Epinephrine C) Vasopressin D) Dopamine
Answer: C | Rationale: Vasopressin is deficient in brain death. It acts as a
vasopressor to increase SVR and BP, while also replacing the missing antidiuretic
hormone.
8. The "hormonal resuscitation" cocktail for a brain-dead donor typically
includes:
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 deficient hormones (vasopressin,
cortisol, thyroid hormone) and manages hyperglycemia (insulin), improving 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,
Page 2 of 60
,Zika
Answer: A | Rationale: NAT testing significantly reduces the window period for
HIV, HCV, and HBV, making it a mandatory screening tool for all deceased donors.
11. Donation after Circulatory Death (DCD) Maastricht Category III refers to:
A) Uncontrolled DCD after out-of-hospital cardiac arrest B) Controlled DCD after
planned withdrawal of life-sustaining therapy C) Brain dead donor D) Donation
after Euthanasia
Answer: B | Rationale: Category III is controlled DCD, where life support is
withdrawn in a controlled setting (usually the OR or ICU), and organs are
recovered after declaration of death by circulatory criteria.
12. The functional warm ischemia time (FWIT) in DCD donation begins at:
A) The time of brain death declaration B) The time of life support withdrawal C)
When systolic BP drops < 50 mmHg or SpO2 < 70% D) The time of cross-clamp
Answer: C | Rationale: FWIT begins when the organs are no longer adequately
perfused (typically SBP < 50 or SpO2 < 70%) and ends at cold flush/cross-clamp.
13. Normothermic Regional Perfusion (NRP) in DCD donation involves:
A) Perfusing the organs with warm, oxygenated blood after circulatory death to
assess viability B) Flushing organs with cold preservation solution C) Using a heart-
lung machine for the donor D) Cooling the donor body
Answer: A | Rationale: NRP restores oxygenated blood flow to the abdominal or
thoracic organs after circulatory death (while ensuring no cerebral blood flow) to
resuscitate and assess organs before procurement.
14. First-person authorization for organ donation means:
A) The family must consent at the time of death B) The donor registered their
decision on the donor registry, which is legally binding C) The physician decides D)
The hospital ethics committee decides
Answer: B | Rationale: First-person consent (via state registries or donor
designation on a driver's license) is legally binding and does not require family
consent to proceed with donation, though OPOs still work with families.
15. Which reflex may still be present in a brain-dead patient and does not
invalidate the brain death diagnosis?
A) Pupillary response to light B) Corneal reflex C) Lazarus sign (spinal reflex) D)
Oculocephalic reflex
Answer: C | Rationale: The Lazarus sign (trunk movement) is a spinal reflex that
can occur in brain-dead patients. It does not indicate brainstem function and does
not invalidate brain death.
Page 3 of 60
, 16. The target mean arterial pressure (MAP) for a brain-dead donor is generally:
A) > 40 mmHg B) > 60 mmHg C) > 80 mmHg D) > 100 mmHg
Answer: B | Rationale: A MAP > 60 mmHg is targeted to ensure adequate
perfusion to the donor organs, particularly the kidneys and liver.
17. Which electrolyte abnormality is most common in brain death due to cell
lysis and DI?
A) Hypokalemia B) Hypernatremia C) Hypocalcemia D) Hypomagnesemia
Answer: B | Rationale: Diabetes insipidus causes massive free water loss, leading
to hypernatremia. Cell lysis can also release intracellular contents, but
hypernatremia is the classic DI-related issue.
18. A donor with a PaO2 < 80 mmHg on 100% FiO2 and PEEP 10 is likely
experiencing:
A) Neurogenic pulmonary edema B) Aspiration pneumonia C) Both A and B D)
Pulmonary embolism
Answer: C | Rationale: Brain death often causes neurogenic pulmonary edema due
to the sympathetic surge. Aspiration is also common. Both cause severe
hypoxemia.
19. Which test is used to determine if a donor is eligible for heart donation?
A) Echocardiogram B) Coronary angiography C) Both A and B D) Right heart
catheterization only
Answer: C | Rationale: Both echo (to assess function and structure) and coronary
angiography (to rule out CAD, especially in older donors or those with risk factors)
are required for heart donation.
20. The maximum acceptable cold ischemia time (CIT) for a kidney transplant is
generally considered:
A) < 12 hours B) < 24 hours C) < 36 hours D) > 48 hours is acceptable
Answer: C | Rationale: While kidneys can tolerate longer CIT than other organs,
CIT > 24-36 hours is associated with increased rates of delayed graft function
(DGF) and worse outcomes. < 24 is ideal, < 36 is generally acceptable.
21. The maximum acceptable cold ischemia time for a liver transplant is:
A) < 8 hours B) < 12 hours C) < 24 hours D) < 36 hours
Answer: B | Rationale: The liver is sensitive to prolonged cold ischemia. CIT > 12-
14 hours significantly increases the risk of primary non-function and biliary
complications.
22. The maximum acceptable cold ischemia time for a heart transplant is:
A) < 4 hours B) < 8 hours C) < 12 hours D) < 24 hours
Page 4 of 60
QUESTIONS AND CORRECT DETAILED
ANSWERS (VERIFIED ANSWERS)
This comprehensive 300-question study guide is designed for the Certified Clinical
Transplant Coordinator (CCTC) exam administered by NATCO/ABTC. It covers the
core domains: Organ Donation, Immunology, Transplant Medicine, UNOS Policies,
Psychosocial/Ethics, and Program Administration.
Domain 1: Organ Donation & Donor Management
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 ICP causes brainstem herniation, leading to loss
of cortical inhibition and a massive sympathetic surge (autonomic storm), causing
hypertension, tachycardia, and vasoconstriction.
2. Which of the following is an absolute contraindication to the apnea test?
A) Core temperature < 36°C (96.8°F) B) Systolic BP < 90 mmHg C) PaCO2 < 35
mmHg D) All of the above
Answer: D | Rationale: The apnea test requires core temp ≥ 36°C, SBP ≥ 90
mmHg, euvolemia, and a baseline PaCO2 of 35-45 mmHg to be valid and safe.
3. A positive apnea test is defined as:
A) PaCO2 ≥ 60 mmHg or a 20 mmHg increase from baseline with no respiratory
effort
B) PaO2 < 60 mmHg B) SpO2 < 88% C) Heart rate drop > 20%
Answer: A | Rationale: A positive apnea test confirms brain death by
demonstrating hypercapnia (the primary respiratory drive stimulus) without any
respiratory effort.
4. Which ancillary test is most commonly used when 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)
Page 1 of 60
,showing intracranial absence of blood flow ("hollow skull sign") is the most widely
accepted and utilized ancillary test.
5. Which hormonal replacement is typically initiated to treat diabetes insipidus
in the brain-dead donor?
A) Hydrocortisone B) Levothyroxine C) Desmopressin (DDAVP) D) Insulin
Answer: C | Rationale: Brain death causes posterior pituitary failure, leading to DI.
DDAVP (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 first-line for donor hemodynamic support
because it also replaces a deficient hormone?
A) Norepinephrine B) Epinephrine C) Vasopressin D) Dopamine
Answer: C | Rationale: Vasopressin is deficient in brain death. It acts as a
vasopressor to increase SVR and BP, while also replacing the missing antidiuretic
hormone.
8. The "hormonal resuscitation" cocktail for a brain-dead donor typically
includes:
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 deficient hormones (vasopressin,
cortisol, thyroid hormone) and manages hyperglycemia (insulin), improving 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,
Page 2 of 60
,Zika
Answer: A | Rationale: NAT testing significantly reduces the window period for
HIV, HCV, and HBV, making it a mandatory screening tool for all deceased donors.
11. Donation after Circulatory Death (DCD) Maastricht Category III refers to:
A) Uncontrolled DCD after out-of-hospital cardiac arrest B) Controlled DCD after
planned withdrawal of life-sustaining therapy C) Brain dead donor D) Donation
after Euthanasia
Answer: B | Rationale: Category III is controlled DCD, where life support is
withdrawn in a controlled setting (usually the OR or ICU), and organs are
recovered after declaration of death by circulatory criteria.
12. The functional warm ischemia time (FWIT) in DCD donation begins at:
A) The time of brain death declaration B) The time of life support withdrawal C)
When systolic BP drops < 50 mmHg or SpO2 < 70% D) The time of cross-clamp
Answer: C | Rationale: FWIT begins when the organs are no longer adequately
perfused (typically SBP < 50 or SpO2 < 70%) and ends at cold flush/cross-clamp.
13. Normothermic Regional Perfusion (NRP) in DCD donation involves:
A) Perfusing the organs with warm, oxygenated blood after circulatory death to
assess viability B) Flushing organs with cold preservation solution C) Using a heart-
lung machine for the donor D) Cooling the donor body
Answer: A | Rationale: NRP restores oxygenated blood flow to the abdominal or
thoracic organs after circulatory death (while ensuring no cerebral blood flow) to
resuscitate and assess organs before procurement.
14. First-person authorization for organ donation means:
A) The family must consent at the time of death B) The donor registered their
decision on the donor registry, which is legally binding C) The physician decides D)
The hospital ethics committee decides
Answer: B | Rationale: First-person consent (via state registries or donor
designation on a driver's license) is legally binding and does not require family
consent to proceed with donation, though OPOs still work with families.
15. Which reflex may still be present in a brain-dead patient and does not
invalidate the brain death diagnosis?
A) Pupillary response to light B) Corneal reflex C) Lazarus sign (spinal reflex) D)
Oculocephalic reflex
Answer: C | Rationale: The Lazarus sign (trunk movement) is a spinal reflex that
can occur in brain-dead patients. It does not indicate brainstem function and does
not invalidate brain death.
Page 3 of 60
, 16. The target mean arterial pressure (MAP) for a brain-dead donor is generally:
A) > 40 mmHg B) > 60 mmHg C) > 80 mmHg D) > 100 mmHg
Answer: B | Rationale: A MAP > 60 mmHg is targeted to ensure adequate
perfusion to the donor organs, particularly the kidneys and liver.
17. Which electrolyte abnormality is most common in brain death due to cell
lysis and DI?
A) Hypokalemia B) Hypernatremia C) Hypocalcemia D) Hypomagnesemia
Answer: B | Rationale: Diabetes insipidus causes massive free water loss, leading
to hypernatremia. Cell lysis can also release intracellular contents, but
hypernatremia is the classic DI-related issue.
18. A donor with a PaO2 < 80 mmHg on 100% FiO2 and PEEP 10 is likely
experiencing:
A) Neurogenic pulmonary edema B) Aspiration pneumonia C) Both A and B D)
Pulmonary embolism
Answer: C | Rationale: Brain death often causes neurogenic pulmonary edema due
to the sympathetic surge. Aspiration is also common. Both cause severe
hypoxemia.
19. Which test is used to determine if a donor is eligible for heart donation?
A) Echocardiogram B) Coronary angiography C) Both A and B D) Right heart
catheterization only
Answer: C | Rationale: Both echo (to assess function and structure) and coronary
angiography (to rule out CAD, especially in older donors or those with risk factors)
are required for heart donation.
20. The maximum acceptable cold ischemia time (CIT) for a kidney transplant is
generally considered:
A) < 12 hours B) < 24 hours C) < 36 hours D) > 48 hours is acceptable
Answer: C | Rationale: While kidneys can tolerate longer CIT than other organs,
CIT > 24-36 hours is associated with increased rates of delayed graft function
(DGF) and worse outcomes. < 24 is ideal, < 36 is generally acceptable.
21. The maximum acceptable cold ischemia time for a liver transplant is:
A) < 8 hours B) < 12 hours C) < 24 hours D) < 36 hours
Answer: B | Rationale: The liver is sensitive to prolonged cold ischemia. CIT > 12-
14 hours significantly increases the risk of primary non-function and biliary
complications.
22. The maximum acceptable cold ischemia time for a heart transplant is:
A) < 4 hours B) < 8 hours C) < 12 hours D) < 24 hours
Page 4 of 60
