AAB MT COMPREHENSIVE EXAMINATION
TEST 2026 FULL QUESTIONS CORRECT
SOLUTIONS
◉ All of the following donors would be permanently deferred:
Answer: 75-year-old male who had acute hepatitis 20 years ago
following surgery, 19-y/o first-time donor who received human
growth hormone 12 years ago, and a 24-y/o donor with a history of
a positive test for Hepatitis C from another blood center.
◉ What is the interval between blood donations?
Answer: 8 weeks
◉ The oral temperature of a donor must not exceed which value?
Answer: 37.5 degrees C
◉ What is the minimum acceptable hemoglobin for blood donors?
Answer: 12.5 g/dL for allogeneic donors
◉ What is the lowest acceptable hematocrit for allogeneic donors?
Answer: 38%
,◉ What donor meets the requirement for age, pulse, weight, and
blood pressure?
Answer: Age: 32, Pulse: 60, Weight (lb) 185, BP: 110/70
◉ How long must a pregnant woman be deferred?
Answer: 6 weeks postpartum
◉ There is a 12-month deferment for each of the following donors:
Answer: Donor received a blood transfusion, donor received a tattoo
and body piercing, donor had sex with a person with hepatitis.
◉ There is a 12-month deferment for each of the following donors
EXCEPT:
Answer: Donor received the hepatitis B vaccine
◉ How long must a prospective donor with a history of malaria be
deferred?
Answer: 3 years after cessation of treatment
◉ A lab tech who has a positive tuberculin skin test wants to donate
blood. If he/she meets all the other criteria, how long is the deferral?
Answer: No deferral as long as there is no other abnormality
,◉ All of the following are causes of permanent donor deferral:
Answer: Confirmed HIV positive, family history of Creutzfedt-Jakob
disease, and intravenous drug user
◉ All of the following are causes of permanent donor deferral
EXCEPT:
Answer: Donor received the hepatitis B vaccine
◉ Current testing on all donor blood must include testing for which
of the following?
Answer: Serological test for syphilis
◉ Which one of the following tests is not required by AABB and is
therefore optional during donor blood testing?
Answer: anti-HBc
◉ What is a commonly used screening method for the detection of
HIV-1 antibodies?
Answer: Enzyme-linked immunosorbent assays (ELISA)
◉ Currently required viral hepatitis marker tests include all of the
following:
, Answer: Anti-HCV, Anti-HBc, and HBsAg
◉ Currently required viral hepatitis marker tests include all of the
following EXCEPT:
Answer: anti-HAV
◉ When color coding is used for donor blood labels, what color is
group A?
Answer: Yellow
◉ Which infectious agent is least likely to be transmitted by a blood
infection?
Answer: HAV
◉ In the very early acute phase of hepatitis, which one of the
following tests would be indicative of onset of a viremic state?
Answer: HBsAg
◉ During the "window period," what is the only marker of HBV
infection?
Answer: Anti-HBc
TEST 2026 FULL QUESTIONS CORRECT
SOLUTIONS
◉ All of the following donors would be permanently deferred:
Answer: 75-year-old male who had acute hepatitis 20 years ago
following surgery, 19-y/o first-time donor who received human
growth hormone 12 years ago, and a 24-y/o donor with a history of
a positive test for Hepatitis C from another blood center.
◉ What is the interval between blood donations?
Answer: 8 weeks
◉ The oral temperature of a donor must not exceed which value?
Answer: 37.5 degrees C
◉ What is the minimum acceptable hemoglobin for blood donors?
Answer: 12.5 g/dL for allogeneic donors
◉ What is the lowest acceptable hematocrit for allogeneic donors?
Answer: 38%
,◉ What donor meets the requirement for age, pulse, weight, and
blood pressure?
Answer: Age: 32, Pulse: 60, Weight (lb) 185, BP: 110/70
◉ How long must a pregnant woman be deferred?
Answer: 6 weeks postpartum
◉ There is a 12-month deferment for each of the following donors:
Answer: Donor received a blood transfusion, donor received a tattoo
and body piercing, donor had sex with a person with hepatitis.
◉ There is a 12-month deferment for each of the following donors
EXCEPT:
Answer: Donor received the hepatitis B vaccine
◉ How long must a prospective donor with a history of malaria be
deferred?
Answer: 3 years after cessation of treatment
◉ A lab tech who has a positive tuberculin skin test wants to donate
blood. If he/she meets all the other criteria, how long is the deferral?
Answer: No deferral as long as there is no other abnormality
,◉ All of the following are causes of permanent donor deferral:
Answer: Confirmed HIV positive, family history of Creutzfedt-Jakob
disease, and intravenous drug user
◉ All of the following are causes of permanent donor deferral
EXCEPT:
Answer: Donor received the hepatitis B vaccine
◉ Current testing on all donor blood must include testing for which
of the following?
Answer: Serological test for syphilis
◉ Which one of the following tests is not required by AABB and is
therefore optional during donor blood testing?
Answer: anti-HBc
◉ What is a commonly used screening method for the detection of
HIV-1 antibodies?
Answer: Enzyme-linked immunosorbent assays (ELISA)
◉ Currently required viral hepatitis marker tests include all of the
following:
, Answer: Anti-HCV, Anti-HBc, and HBsAg
◉ Currently required viral hepatitis marker tests include all of the
following EXCEPT:
Answer: anti-HAV
◉ When color coding is used for donor blood labels, what color is
group A?
Answer: Yellow
◉ Which infectious agent is least likely to be transmitted by a blood
infection?
Answer: HAV
◉ In the very early acute phase of hepatitis, which one of the
following tests would be indicative of onset of a viremic state?
Answer: HBsAg
◉ During the "window period," what is the only marker of HBV
infection?
Answer: Anti-HBc
