AAB (MT) EXAM 2025 WITH 100%
CORRECT ANSWERS
All of the following donors would be permanently deferred EXCEPT which one? - correct
answers ✔✔38-year-old male who received rabies vaccine after a dog bite 3 months ago
All of the following donors would be permanently deferred: - correct answers ✔✔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? - correct answers ✔✔8 weeks
The oral temperature of a donor must not exceed which value? - correct answers ✔✔37.5
degrees C
What is the minimum acceptable hemoglobin for blood donors? - correct answers ✔✔12.5 g/dL
for allogeneic donors
What is the lowest acceptable hematocrit for allogeneic donors? - correct answers ✔✔38%
What donor meets the requirement for age, pulse, weight, and blood pressure? - correct
answers ✔✔Age: 32, Pulse: 60, Weight (lb) 185, BP: 110/70
How long must a pregnant woman be deferred? - correct answers ✔✔6 weeks postpartum
,There is a 12-month deferment for each of the following donors: - correct answers ✔✔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: - correct answers
✔✔Donor received the hepatitis B vaccine
How long must a prospective donor with a history of malaria be deferred? - correct answers
✔✔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? - correct answers ✔✔No deferral as long as there is no
other abnormality
All of the following are causes of permanent donor deferral: - correct answers ✔✔Confirmed
HIV positive, family history of Creutzfedt-Jakob disease, and intravenous drug user
All of the following are causes of permanent donor deferral EXCEPT: - correct answers
✔✔Donor received the hepatitis B vaccine
Current testing on all donor blood must include testing for which of the following? - correct
answers ✔✔Serological test for syphilis
Which one of the following tests is not required by AABB and is therefore optional during donor
blood testing? - correct answers ✔✔anti-HBc
What is a commonly used screening method for the detection of HIV-1 antibodies? - correct
answers ✔✔Enzyme-linked immunosorbent assays (ELISA)
,Currently required viral hepatitis marker tests include all of the following: - correct answers
✔✔Anti-HCV, Anti-HBc, and HBsAg
Currently required viral hepatitis marker tests include all of the following EXCEPT: - correct
answers ✔✔anti-HAV
When color coding is used for donor blood labels, what color is group A? - correct answers
✔✔Yellow
Which infectious agent is least likely to be transmitted by a blood infection? - correct answers
✔✔HAV
In the very early acute phase of hepatitis, which one of the following tests would be indicative
of onset of a viremic state? - correct answers ✔✔HBsAg
During the "window period," what is the only marker of HBV infection? - correct answers
✔✔Anti-HBc
What is the minimum length of time that the patient's serum must remain positive for HBsAg
before the individual is referred to as a chronic carrier? - correct answers ✔✔6 months
Which viral agent causes the majority of cases of transfusion-associated hepatitis? - correct
answers ✔✔HCV
All of the following are required viral marker testing for the human immunodeficiency virus
EXCEPT which one? - correct answers ✔✔HIV-1 p24 antigen
Which virus can be deadly to immunocompromised patients or premature infants? - correct
answers ✔✔CMV
, All of the following organisms have been implicated in bacterial contamination of donor blood
products EXCEPT which one? - correct answers ✔✔Escherichia coli
All of the following organisms have been implicated in bacterial contamination of donor blood
products: - correct answers ✔✔Y. enterocolitica, C. freundii, and Pseudomonas putida
Which one of the following parasites has NOT been transmitted by blood transfusion? - correct
answers ✔✔Naegleria
Which parasites have been transmitted by blood transfusion? - correct answers ✔✔Babesia,
Plasmodium, and Trypanosoma
What is the acceptable temperature range for a blood bank refrigerator? - correct answers
✔✔1-6 degrees C
According to FDA regulations, if blood is to be transported, then what temperature must be
maintained during transportation? - correct answers ✔✔1-10 degrees C
What is the expiration date of RBCs preserved with CPDA-1? - correct answers ✔✔35 days
What is the expiration date of RBCs preserved with ADSOL? - correct answers ✔✔42 days
What is the shelf life of cryoprecipitated antihemolytic factor when stored at -18 degrees C or
lower? - correct answers ✔✔1 year
What is the shelf life of FFP that is stored at -18 degrees C or lower? - correct answers ✔✔1
year
CORRECT ANSWERS
All of the following donors would be permanently deferred EXCEPT which one? - correct
answers ✔✔38-year-old male who received rabies vaccine after a dog bite 3 months ago
All of the following donors would be permanently deferred: - correct answers ✔✔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? - correct answers ✔✔8 weeks
The oral temperature of a donor must not exceed which value? - correct answers ✔✔37.5
degrees C
What is the minimum acceptable hemoglobin for blood donors? - correct answers ✔✔12.5 g/dL
for allogeneic donors
What is the lowest acceptable hematocrit for allogeneic donors? - correct answers ✔✔38%
What donor meets the requirement for age, pulse, weight, and blood pressure? - correct
answers ✔✔Age: 32, Pulse: 60, Weight (lb) 185, BP: 110/70
How long must a pregnant woman be deferred? - correct answers ✔✔6 weeks postpartum
,There is a 12-month deferment for each of the following donors: - correct answers ✔✔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: - correct answers
✔✔Donor received the hepatitis B vaccine
How long must a prospective donor with a history of malaria be deferred? - correct answers
✔✔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? - correct answers ✔✔No deferral as long as there is no
other abnormality
All of the following are causes of permanent donor deferral: - correct answers ✔✔Confirmed
HIV positive, family history of Creutzfedt-Jakob disease, and intravenous drug user
All of the following are causes of permanent donor deferral EXCEPT: - correct answers
✔✔Donor received the hepatitis B vaccine
Current testing on all donor blood must include testing for which of the following? - correct
answers ✔✔Serological test for syphilis
Which one of the following tests is not required by AABB and is therefore optional during donor
blood testing? - correct answers ✔✔anti-HBc
What is a commonly used screening method for the detection of HIV-1 antibodies? - correct
answers ✔✔Enzyme-linked immunosorbent assays (ELISA)
,Currently required viral hepatitis marker tests include all of the following: - correct answers
✔✔Anti-HCV, Anti-HBc, and HBsAg
Currently required viral hepatitis marker tests include all of the following EXCEPT: - correct
answers ✔✔anti-HAV
When color coding is used for donor blood labels, what color is group A? - correct answers
✔✔Yellow
Which infectious agent is least likely to be transmitted by a blood infection? - correct answers
✔✔HAV
In the very early acute phase of hepatitis, which one of the following tests would be indicative
of onset of a viremic state? - correct answers ✔✔HBsAg
During the "window period," what is the only marker of HBV infection? - correct answers
✔✔Anti-HBc
What is the minimum length of time that the patient's serum must remain positive for HBsAg
before the individual is referred to as a chronic carrier? - correct answers ✔✔6 months
Which viral agent causes the majority of cases of transfusion-associated hepatitis? - correct
answers ✔✔HCV
All of the following are required viral marker testing for the human immunodeficiency virus
EXCEPT which one? - correct answers ✔✔HIV-1 p24 antigen
Which virus can be deadly to immunocompromised patients or premature infants? - correct
answers ✔✔CMV
, All of the following organisms have been implicated in bacterial contamination of donor blood
products EXCEPT which one? - correct answers ✔✔Escherichia coli
All of the following organisms have been implicated in bacterial contamination of donor blood
products: - correct answers ✔✔Y. enterocolitica, C. freundii, and Pseudomonas putida
Which one of the following parasites has NOT been transmitted by blood transfusion? - correct
answers ✔✔Naegleria
Which parasites have been transmitted by blood transfusion? - correct answers ✔✔Babesia,
Plasmodium, and Trypanosoma
What is the acceptable temperature range for a blood bank refrigerator? - correct answers
✔✔1-6 degrees C
According to FDA regulations, if blood is to be transported, then what temperature must be
maintained during transportation? - correct answers ✔✔1-10 degrees C
What is the expiration date of RBCs preserved with CPDA-1? - correct answers ✔✔35 days
What is the expiration date of RBCs preserved with ADSOL? - correct answers ✔✔42 days
What is the shelf life of cryoprecipitated antihemolytic factor when stored at -18 degrees C or
lower? - correct answers ✔✔1 year
What is the shelf life of FFP that is stored at -18 degrees C or lower? - correct answers ✔✔1
year
