IMMUNOHEMATOLOGY - CHAPTER 9 DETECTION & IDENTIFICATION OF ANTIBODIES 2025 | ACTUAL EXAM QUESTIONS WITH 100% VERIFIED SOLUTIONS

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IMMUNOHEMATOLOGY - CHAPTER 9
DETECTION & IDENTIFICATION OF
ANTIBODIES 2025 | ACTUAL EXAM QUESTIONS
WITH 100% VERIFIED SOLUTIONS




All of the following antigens are found on reagent screening cells EXCEPT:



a) D

b) Jsᵃ

c) C

d)Fyᵇ - Correct-answer-b) Jsᵃ




Which of the following statements concerning acid eluates is FALSE?



a) Citric acid is an example of an acid eluate

b) The pH is reduced to 3 or less to disrupt the antigen-antibody complex

c) The pH of the eluate remains at 3 before testing against a panel

d) None of the above - Correct-answer-c) The pH of the eluate remains at 3

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What screening cells are used primarily for testing donor units for unexpected
antibodies?



a) Pooled

b) 2-vial

c) the eluate

d) absorbed serum - Correct-answer-a) Pooled




When performing the elution procedure, the solution containing the recovered
antibody is called:



a) neutralized serum

b) the buffer

c) the eluate

d) absorbed serum - Correct-answer-c) the eluate




What is the purpose of the Coombs' control cells?



a) To ensure that AHG tests with negative results are not false-negatives