Routine ABO Typing Quiz -

ABO blood typing is done by performing a forward and reverse tying: In forward tying RBCs are mixed with reagent Anti-A and Anti-B to determine antigens on an individual’s red blood cells while in reverse typing a person’s serum is mixed with reagent A1 and B cells to detect ABO antibodies in the serum. Take this quiz to learn how to interpret blood typing results.

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Routine ABO Typing Quiz

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Category: Bloodbank

1. An ABO type on a patient gives the following reactions. What is the patient’s blood type?

Anti-A	Anti- B	Anti- D	Rh	A1 cell	B cell
4+	3+	0	0	0	0

A. A positive

B. A negative

C. AB negative

D. O negative

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Category: Bloodbank

2. An ABO type on a patient gives the following reactions. What is the patient’s blood type?

Anti-A	Anti- B	Anti- D	Rh	A1 cell	B cell
0	4+	0	0	4+	0

A. A positive

B. B positive

C. AB negative

D. B negative

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Category: Bloodbank

3. Which is not included on a properly labeled specimen?

A. Date of admission

B. Two unique patient identifiers

C. Date and time of collection

D. Phlebotomist's initials

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Category: Bloodbank

4. An ABO type on a patient gives the following reactions. What is the patient’s blood type?

Anti-A	Anti- B	Anti- D	Rh	A1 cell	B cell
0	4+	4+	0	3+	0

A. A positive

B. B positive

C. B negative

D. O negative

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Category: Bloodbank

5. What are the two ways ABO typing can be performed?

A. Forward and front type

B. Reverse and back typing

C. Forward and Inverse typing

D. Forward and reverse typing

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Category: Bloodbank

When does a pretransfusion specimen expire?

A. 7 days

B. 3 Days

C. 2 days

D. 2 Weeks

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Category: Bloodbank

7. An ABO type on a patient gives the following reactions. What is the patient’s blood type?

Anti-A	Anti- B	Anti- D	Rh	A1 cell	B cell
4+	0	4+	0	0	3+

A. A positive

B. A negative

C. AB negative

D. O negative

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Category: Bloodbank

8. An ABO type on a patient gives the following reactions. What is the patient’s blood type?

Anti-A	Anti- B	Anti- D	Rh	A1 cell	B cell
4+	4+	0	0	0	0

A. A positive

B. B positive

C. AB negative

D. B negative

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Category: Bloodbank

9. What is being tested in forward typing?

A. Patient's red cells to detect ABO antibodies present

B. Patient's serum to detect ABO antibodies present

C. Patient's red cells to detect ABO antigens present

D. Patient's serum to detect ABO antigens present

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Category: Bloodbank

10. How many drop(s) of a patient serum is added in reverse blood typing?

A. 4 drops

B. 1 drop

C. 5 drops

D. 2 drops

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Category: Bloodbank

11. A Clinical Laboratory Scientist(CLS) receives a specimen with the patient's name, medical record number, and date of collection printed on the label. What should the CLS do?

A. Accept the specimen for testing

B. Reject specimen and ask for redraw

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Category: Bloodbank

12. An ABO type on a patient gives the following reactions. What is the patient’s blood type?

Anti-A	Anti- B	Anti- D	Rh	A1 cell	B cell
0	0	4+	0	4+	4+

A. O positive

B. A positive

C. AB positive

D. B negative

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Category: Bloodbank

13. What is being tested in reverse typing?

A. Patient's red cells to detect ABO antibodies present

B. Patient's serum to detect ABO antibodies present

C. Patient's red cells to detect ABO antigens present

D. Patient's serum to detect ABO antigens present

14 / 14

Category: Bloodbank

14. An ABO type on a patient gives the following reactions. What is the patient’s blood type?

Anti-A	Anti- B	Anti- D	Rh	A1 cell	B cell
0	0	0	0	4+	4+

A. O positive

B. A positive

C. AB positive

D. O negative

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