ABO TEST BANK Questions with Correct Answers (Grade A+)
Question 1: The major immunoglobulin class(es) of anti-B in a group A individual is (are):.
Answer: IgM
Question 2: What are the possible ABO phenotypes of the offspring from the mating of a group A to a
group B individual?
Answer: O, A, B, AB
Question 3: The immunodominant sugar responsible for blood group A specificity is:.
Answer: N-acetyl-D-galactosamine
Question 4: What ABH substance(s) would be found in the saliva of a group B secretor?
Answer: H and B
Question 5: An ABO type on a patient gives the following reactions: Patient Cells With Anti-A (4+)
Anti-B (4+) Anti-A1 (neg) Patient Serum With A1 cells (2+) B cells (neg) The reactions above may be
seen in a patient who is:.
Answer: A2B with anti-A1
Question 6: Which of the following ABO blood groups contains the least amount of H substance?
Answer: A1B
Question 7: You are working on a specimen in the laboratory that you believe to be a Bombay
phenotype. Which of the following reactions would you expect to see?
Answer: Patient's cells + Ulex europaeus = no agglutination
Question 8: An example of a technical error that can result in an ABO discrepancy is:.
Answer: Cell suspension that is too heavy.
Question 9: An ABO type on a patient gives the following reactions: Patient Cells With Anti-A (4+)
Anti-B (neg) Patient Serum With A1 cells (2+) B cells (4+) O cells (2+) Autocontrol (neg) These results
are most likely due to:.
Answer: Non-ABO alloantibody
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Question 1: The major immunoglobulin class(es) of anti-B in a group A individual is (are):.
Answer: IgM
Question 2: What are the possible ABO phenotypes of the offspring from the mating of a group A to a
group B individual?
Answer: O, A, B, AB
Question 3: The immunodominant sugar responsible for blood group A specificity is:.
Answer: N-acetyl-D-galactosamine
Question 4: What ABH substance(s) would be found in the saliva of a group B secretor?
Answer: H and B
Question 5: An ABO type on a patient gives the following reactions: Patient Cells With Anti-A (4+)
Anti-B (4+) Anti-A1 (neg) Patient Serum With A1 cells (2+) B cells (neg) The reactions above may be
seen in a patient who is:.
Answer: A2B with anti-A1
Question 6: Which of the following ABO blood groups contains the least amount of H substance?
Answer: A1B
Question 7: You are working on a specimen in the laboratory that you believe to be a Bombay
phenotype. Which of the following reactions would you expect to see?
Answer: Patient's cells + Ulex europaeus = no agglutination
Question 8: An example of a technical error that can result in an ABO discrepancy is:.
Answer: Cell suspension that is too heavy.
Question 9: An ABO type on a patient gives the following reactions: Patient Cells With Anti-A (4+)
Anti-B (neg) Patient Serum With A1 cells (2+) B cells (4+) O cells (2+) Autocontrol (neg) These results
are most likely due to:.
Answer: Non-ABO alloantibody
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