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MT (AAB) Immunohematology Questions with Accurate Answers
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MT (AAB) ImmunohematologyAll of the following blood donors would be permanently deferred EXCEPT which one? -
answer38-year old male who received rabies vaccine after a dog bite 3 months ago
What is the interval between blood donations - answer8 weeks
The oral temp of a donor must not exceed which value - answer37.5C
What is the minimum acceptable hemoglobin for blood donors - answer12.5 g/dL for
allogeneic donors
What is the lowest acceptable hematocrit for allogeneic blood donors - answer38%
What donor meets the requirement for age, pulse, weight, and blood pressure? -
answerAge:32
Pulse: 60
Weight: 185
Blood pressure: 110/70
How long must a pregnant woman be deferred? - answer6 weeks postpartum
There is a 12-month deferment for each of the following donors: - answerDonor
received a blood transfusion, tattoo and body piercing, had sex with someone with
hepatitis
How long must a prospective donor with a history of malaria be deferred? - answer3
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? - answerno deferral as long as there is no
other abnormality
All of the following are causes of permanent donor deferral EXCEPT which one? -
answerincarcerated individual
What is the length of deferral for symptom-free donors immunized with oral polio,
measles, or mumps vaccine? - answer2 weeks
Current testing on all donor blood must include testing for which of the following? -
answerserological test for syphilis
, Which one of the following tests is not required by AABB and is therefore optional
during donor blood testing? - answeranti-HBc
What is a commonly used screening method for the detection of HIV-1 antibodies -
answerenzyme-linked immunosorbent assays
Currently required viral hepatitis marker tests include all of the following: - answeranti-
HCV, anti HBc, HBsAg
When color coding is used for donor blood labels, what color is group A? - answeryellow
Which infectious agent is least likely to be transmitted by a blood transfusion? -
answerHAV
In the very early acute phase of hepatitis, which one of the following positive tests would
be indicative of onset of a viremic state - answerHBsAg
During the "window period" what is the only marker of HBV infection - answeranti-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? - answer6 months
Which viral agent causes the majority of cases of transfusion-associated hepatitis -
answerHCV
All of the following are required viral marker testing for the human immunodeficiency
virus EXCEPT which one? - answerHIV-1 p24 antigen
Which virus can be deadly to immunocompromised patients or premature infants? -
answerCMV
All of the following organisms have been implicated in bacterial contamination of donor
blood products EXCEPT which one? - answerEscherichia coli (Yersinia enterocolitica,
Citrobacter freundii, Pseudomonas putida)
Which one of the following parasites has NOT been transmitted by blood transfusion -
answerNaegleria (Plasmodium, Babesia, Trypanosoma)
What is the acceptable temp range for a blood bank refrigerator? - answer1-6C
According to FDA regulations, if blood is to be transported, then what temperature must
be maintained during transportation? - answer1-10 C
What is the expiration date of RBC preserved with CPDA-1? - answer35 days
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