Blood Bank - ABO practice test ACTUAL UPDATED QUESTIONS AND CORRECT
ANSWERS
1. An ABO type on a patient gives the following reactions: d. AB
3 multiple choice options
Patient Cells With Patient Cells With
Anti - Anti-B A1 cells B Cells
4+ 4+ Neg Neg
What is the patient's blood type?
2. The major immunoglobulin class(es) of anti-B in a group a. IgM
A individual is (are): 3 multiple choice options
3. What are the possible ABO phenotypes of the d. O, A, B, AB
offspring from the mating of a group A to a group B 3 multiple choice options
individual?
4. The immunodominant sugar responsible for blood b. N-acetyl-D-galactosamine
group A specificity is: 3 multiple choice options
5. What ABH substance(s) would be found in the saliva of c. H and B
a group B secretor? 3 multiple choice options
6. An ABO type on a patient gives the following reactions: b. A2B with anti-A2
3 multiple choice options
Patient Cells With Patient Serum With
Anti-A Anti-B Anti-A1 A1 Cells B Cells
4+ 4+ Neg 2+ Neg
The reactions above may be seen in a patient who is:
, 7. Which of the following ABO blood groups contains the a. A1B
least amount of H substance? 3 multiple choice options
8. You are working on a specimen in the laboratory that a. Patient's cells + Ulex europaeus = no agglutination
you believe to be a Bombay phenotype. Which of the 3 multiple choice options
following reactions would you expect to see?
Ulex europaus is also known as: Anti-H lectin
3 multiple choice options
Ulex europaus can be used to: Determine how much H antigen is on red cells
3 multiple choice options
9. An example of a technical error that can result in an c. Cell suspension that is too heavy
ABO discrepancy is: 3 multiple choice options
10. An ABO type on a patient gives the following b. Non-ABO alloantibody
reactions: 3 multiple choice options
Patient cells with Patient Cells with
Anti-A Anti-B A2 Cells B Cells O Cells Autocontrol
4+ Neg 2+ 4+ 2+ Neg
These results are most likely due to:
Indicate the ABO group of the following patient B
3 multiple choice options
Anti-A Anti-B Anti-A,B A cells B Cells
0 4+ 4+ 4+ 0
Indicate the ABO group of the following patient AB
3 multiple choice options
Anti-A Anti-B Anti-A,B A cells B Cells
4+ 4+ 4+ 0 0
Indicate the ABO group of the following patient A3
3 multiple choice options
Anti-A Anti-B Anti-A,B A cells B Cells
2+mf 0 2+mf 0 4+
Indicate the ABO group of the following patient A
3 multiple choice options
Anti-A Anti-B Anti-A,B A cells B Cells
4+ 0 2+ 0 4+
Indicate the ABO group of the following patient O
3 multiple choice options
Anti-A Anti-B Anti-A,B A cells B Cells
0 0 0 4+ 4+
ANSWERS
1. An ABO type on a patient gives the following reactions: d. AB
3 multiple choice options
Patient Cells With Patient Cells With
Anti - Anti-B A1 cells B Cells
4+ 4+ Neg Neg
What is the patient's blood type?
2. The major immunoglobulin class(es) of anti-B in a group a. IgM
A individual is (are): 3 multiple choice options
3. What are the possible ABO phenotypes of the d. O, A, B, AB
offspring from the mating of a group A to a group B 3 multiple choice options
individual?
4. The immunodominant sugar responsible for blood b. N-acetyl-D-galactosamine
group A specificity is: 3 multiple choice options
5. What ABH substance(s) would be found in the saliva of c. H and B
a group B secretor? 3 multiple choice options
6. An ABO type on a patient gives the following reactions: b. A2B with anti-A2
3 multiple choice options
Patient Cells With Patient Serum With
Anti-A Anti-B Anti-A1 A1 Cells B Cells
4+ 4+ Neg 2+ Neg
The reactions above may be seen in a patient who is:
, 7. Which of the following ABO blood groups contains the a. A1B
least amount of H substance? 3 multiple choice options
8. You are working on a specimen in the laboratory that a. Patient's cells + Ulex europaeus = no agglutination
you believe to be a Bombay phenotype. Which of the 3 multiple choice options
following reactions would you expect to see?
Ulex europaus is also known as: Anti-H lectin
3 multiple choice options
Ulex europaus can be used to: Determine how much H antigen is on red cells
3 multiple choice options
9. An example of a technical error that can result in an c. Cell suspension that is too heavy
ABO discrepancy is: 3 multiple choice options
10. An ABO type on a patient gives the following b. Non-ABO alloantibody
reactions: 3 multiple choice options
Patient cells with Patient Cells with
Anti-A Anti-B A2 Cells B Cells O Cells Autocontrol
4+ Neg 2+ 4+ 2+ Neg
These results are most likely due to:
Indicate the ABO group of the following patient B
3 multiple choice options
Anti-A Anti-B Anti-A,B A cells B Cells
0 4+ 4+ 4+ 0
Indicate the ABO group of the following patient AB
3 multiple choice options
Anti-A Anti-B Anti-A,B A cells B Cells
4+ 4+ 4+ 0 0
Indicate the ABO group of the following patient A3
3 multiple choice options
Anti-A Anti-B Anti-A,B A cells B Cells
2+mf 0 2+mf 0 4+
Indicate the ABO group of the following patient A
3 multiple choice options
Anti-A Anti-B Anti-A,B A cells B Cells
4+ 0 2+ 0 4+
Indicate the ABO group of the following patient O
3 multiple choice options
Anti-A Anti-B Anti-A,B A cells B Cells
0 0 0 4+ 4+
