Laboratory Science Blood Banking and Transfusion Medicine 2

Question 1

Which Rh antigen is the most clinically significant and is the basis for Rh-positive/Rh-negative typing?

Accepted Answer

D antigen

Answer

C antigen

Answer

E antigen

Answer

c antigen (little c)

Question 2

What is the maximum allowable storage time for fresh frozen plasma (FFP) stored at -18°C or below?

Accepted Answer

1 year (12 months)

Answer

6 months

Answer

2 years (24 months)

Answer

3 months

Question 3

The weak D test is performed primarily to:

Accepted Answer

Detect weak expression of the D antigen in apparently Rh-negative individuals

Answer

Confirm ABO typing in emergency situations

Answer

Identify anti-D antibodies in patient serum

Answer

Determine donor suitability for platelet apheresis

Question 4

Leukoreduction of blood products is performed primarily to:

Accepted Answer

Reduce febrile non-hemolytic transfusion reactions and CMV transmission risk

Answer

Remove viral pathogens from donor blood

Answer

Extend the shelf life of red blood cell units

Answer

Prevent bacterial contamination during processing

Question 5

What is the primary purpose of irradiating blood products before transfusion?

Accepted Answer

Prevent transfusion-associated graft-versus-host disease (TA-GvHD)

Answer

Inactivate viral pathogens in plasma

Answer

Extend the shelf life of cellular blood components

Answer

Sterilize the blood and eliminate bacterial contamination

Question 6

Which blood group system is the most clinically significant after the ABO system?

Accepted Answer

Rh system

Answer

Lewis system

Answer

Duffy system

Answer

P system

Question 7

What is the maximum volume collected in a standard whole blood donation?

Accepted Answer

450-500 mL

Answer

250 mL

Answer

700 mL

Answer

1000 mL