Laboratory Science Blood Banking and Transfusion Medicine

Question 1

Which blood type is considered the universal donor for red blood cell transfusions?

Accepted Answer

Type O negative

Answer

Type A negative

Answer

Type O positive

Answer

Type AB negative

Question 2

What is the primary purpose of the antibody screen in pre-transfusion testing?

Accepted Answer

Detect clinically significant unexpected antibodies in patient serum

Answer

Determine the patient's ABO blood type

Answer

Test donor blood for infectious diseases

Answer

Match donor and recipient platelet antigens

Question 3

At what temperature should packed red blood cell units be stored?

Accepted Answer

1-6°C

Answer

20-24°C

Answer

-18°C or below

Answer

37°C

Question 4

Which additive solution extends the shelf life of red blood cell units to 42 days?

Accepted Answer

AS-1 (Additive Solution-1/Adsol)

Answer

ACD (Acid Citrate Dextrose)

Answer

CPD (Citrate Phosphate Dextrose)

Answer

CPDA-1 (Citrate Phosphate Dextrose Adenine)

Question 5

The major crossmatch tests compatibility between which two components?

Accepted Answer

Recipient serum and donor red cells

Answer

Donor serum and recipient red cells

Answer

Donor and recipient platelets only

Answer

Donor and recipient plasma proteins

Question 6

Which blood component is the preferred choice for a patient with hypofibrinogenemia?

Accepted Answer

Cryoprecipitate

Answer

Packed red blood cells

Answer

Fresh frozen plasma

Answer

Platelet concentrate

Question 7

What is the correct storage condition for platelet concentrates?

Accepted Answer

20-24°C with continuous agitation

Answer

1-6°C with continuous agitation

Answer

-18°C or below

Answer

37°C without agitation