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Blood Bank Questions with 100%
Correct Answers | for Specific Exam
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Which of the following set of conditions would NOT allow
HDN to occur as a result of Rh incompatibility:
Ans: Mother Rh-negative, father Rh-negative
What is the purpose of a major crossmatch?
Ans: Verify donor ABO packed-cell compatibility
The use of cells with known blood groups to confirm ABO
typing is known as:
Ans: Reverse grouping
Fresh frozen plasma :
Ans: Should be transfused within 24 hours of thawing
What is the proper storage temperature for thawed
Cryoprecipitate?
:
vPretest - Stuvia US
,2
Ans: 20 - 24 ºC.
Most antibodies present in cord blood are of ________
origin.
Ans: maternal
What are the possible ABO genotypes of offspring from
parents whose genotypes are OO and AB:
Ans: OA
OB
An aliquot of AS-1 red blood cells is being prepared from
an intact packed cell unit using a sterile connection
device.
During the process of preparing an aliquot, the sterile
device fails and blood drips onto the counter from the
product tubing. What should be done with the primary
unit?
Ans: Change the expiration date to 24 hours
:
vPretest - Stuvia US
,3
Kernicterus due to high levels of unconjugated bilirubin
can cause brain damage in newborns suffering from
severe HDFN.
Ans: True
The parents' blood types were AB and O. The blood
group of any of their children could ONLY be:
Ans: Group A or B only
For the test results shown above, which of the following
antibodies is most likely to be causing the newborn's
positive DAT?
:
vPretest - Stuvia US
, 4
Ans: anti-K
The correct answer is anti-K.
Both the mother and infant are group A, eliminating ABO
HDFN.
We are given the cell ID information for each of the
screening cells. Screen cell 1 is R1R1. Therefore these
antigens are present: D,C, e.
Screen cell 2 is R2R2. Therefore these antigens are present:
D,E,c
Screen cell 3 is rr. Therefore these antigens are present:
c,e
The only cell that reacted was Screen cell 3. Both c and e
are also present on the nonreactive cells. The only choice
that has not been eliminated is anti-K.
Also, the antibody screen reaction pattern (only cell 3
positive) is typical of anti-K.
An urticarial transfusion reaction is characterized by:
Ans: Rash and hives
:
vPretest - Stuvia US
Blood Bank Questions with 100%
Correct Answers | for Specific Exam
Which of the following set of conditions would NOT allow
HDN to occur as a result of Rh incompatibility:
Ans: Mother Rh-negative, father Rh-negative
What is the purpose of a major crossmatch?
Ans: Verify donor ABO packed-cell compatibility
The use of cells with known blood groups to confirm ABO
typing is known as:
Ans: Reverse grouping
Fresh frozen plasma :
Ans: Should be transfused within 24 hours of thawing
What is the proper storage temperature for thawed
Cryoprecipitate?
:
vPretest - Stuvia US
,2
Ans: 20 - 24 ºC.
Most antibodies present in cord blood are of ________
origin.
Ans: maternal
What are the possible ABO genotypes of offspring from
parents whose genotypes are OO and AB:
Ans: OA
OB
An aliquot of AS-1 red blood cells is being prepared from
an intact packed cell unit using a sterile connection
device.
During the process of preparing an aliquot, the sterile
device fails and blood drips onto the counter from the
product tubing. What should be done with the primary
unit?
Ans: Change the expiration date to 24 hours
:
vPretest - Stuvia US
,3
Kernicterus due to high levels of unconjugated bilirubin
can cause brain damage in newborns suffering from
severe HDFN.
Ans: True
The parents' blood types were AB and O. The blood
group of any of their children could ONLY be:
Ans: Group A or B only
For the test results shown above, which of the following
antibodies is most likely to be causing the newborn's
positive DAT?
:
vPretest - Stuvia US
, 4
Ans: anti-K
The correct answer is anti-K.
Both the mother and infant are group A, eliminating ABO
HDFN.
We are given the cell ID information for each of the
screening cells. Screen cell 1 is R1R1. Therefore these
antigens are present: D,C, e.
Screen cell 2 is R2R2. Therefore these antigens are present:
D,E,c
Screen cell 3 is rr. Therefore these antigens are present:
c,e
The only cell that reacted was Screen cell 3. Both c and e
are also present on the nonreactive cells. The only choice
that has not been eliminated is anti-K.
Also, the antibody screen reaction pattern (only cell 3
positive) is typical of anti-K.
An urticarial transfusion reaction is characterized by:
Ans: Rash and hives
:
vPretest - Stuvia US
