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Exam (elaborations)

Blood bank-Final Exam Questions with Correct Answers

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  • Course
  • Ascp blood bank certification
  • Institution
  • Ascp Blood Bank Certification

Blood bank-Final Exam Questions with Correct Answers

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  • August 10, 2024
  • 21
  • 2024/2025
  • Exam (elaborations)
  • Questions & answers
  • Ascp blood bank certification
  • Ascp blood bank certification
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Blood bank-Final Exam Questions with Correct
Answers
What percentage of the group A population are type A2? Correct
Answer-20%


Match the fisher-race notation with the correct Weiner notation: r"
Correct Answer-Ce


Match the fisher-race notation with the correct Weiner notation: R0
Correct Answer-Dce


What frequency of the population is D positive? Correct Answer-85%


After adding antigen and antibody to a test tube, one large agglutinate
was observed. How should this reaction be graded? Correct Answer-4+


ABO blood group antigens are expresses as ____ traits. Correct Answer-
Codominant


Polyspecific antihuman globulin contains Correct Answer-anti-IgG
AND anti-C3d


Using Wiener nomenclature, a patient is r' What Rh antigens does this
patient possess? Correct Answer-C, e

,Name the anti-H lectin Correct Answer-Ulex europaeus


An individual lacking all antigens of the Rh blood group system is
classified as Correct Answer-Rh null


All of the following statements regarding ABO antibodies are true
EXCEPT:
A) They are implicated in hemolytic transfusion reactions
B) They are naturally occurring and expected
C) They are not produced in neonates until after 12 months of age
D) They are routinely IgM and react optimally at room temperature
Correct Answer-They are not produced in neonates until after 12 months
of age


A blood sample from a 90-year-old man was submitted to the blood
bank for a type and screen before surgery. The forward type
demonstrates as a group A, whereas the reverse type appears to be group
AB. The most likely cause of the discrepancy is: Correct Answer-that
patient has low-titer isoagglutinins


An individual who is Group A cannot produce a child who is Group B?
T/F Correct Answer-False


Match the following phenotypes with the most probable genotype in the
Weiner nomenclature: DcE Correct Answer-R2R2

, Match the following phenotypes with the most probable genotype in the
Weiner nomenclature: DCe Correct Answer-R1R1


The genotypes of parents are as follows: BO and AB. Determine the
percentage of genotypes of each possible combination in the mating of
these parents. Correct Answer-25% AB, 25% AO, 25% BB, 25% BO


The genotypes of parents are BO and AB. Determine the percentage of
phenotypes of each possible combination in the mating of these parents.
Correct Answer-25% AB, 25% A 50% B


The most serious transfusion reactions are due to incompatibility in
which of the following blood group systems? Correct Answer-ABO


Briefly explain why testing for the D antigen using high-protein anti-D
reagent requires that an Rh control reagent must also be tested. Correct
Answer-the control should be negative this ensures we are testing
properly


The expression of the gene that can be observed is called Correct
Answer-Phenotype


Name the direct gene product of the B gene Correct Answer-D-galactose


Group O donor red blood cells cannot be transfused to a person who has
"Bombay blood because the red cells of the donor contain Correct
Answer-H antigen

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