Medical Technologist Test Blood Banking 1

Question 1

A patient with blood type A negative can receive red blood cells from which donor types?

Accepted Answer

A– and O– only

Answer

In emergency or standard practice, Rh-negative patients should receive Rh-negative RBCs to prevent sensitization; type A– patients can receive A– and O– units.

Question 2

The Coombs test (direct antiglobulin test) detects which of the following?

Accepted Answer

IgG or complement bound to red blood cells in vivo

Answer

The direct antiglobulin test (DAT) detects IgG or complement already coating the patient's RBCs in vivo, as in autoimmune hemolytic anemia.

Question 3

Which blood product provides fibrinogen and factor VIII for treating hemorrhagic conditions?

Accepted Answer

Cryoprecipitate

Answer

Cryoprecipitate is enriched in fibrinogen, factor VIII, vWF, factor XIII, and fibronectin, making it ideal for fibrinogen replacement.

Question 4

Universal donor red blood cells are of which blood type?

Accepted Answer

Type O negative

Answer

Type O negative RBCs lack A, B, and Rh antigens, making them safe to transfuse to any recipient in emergencies.

Question 5

What is the storage temperature for packed red blood cells?

Accepted Answer

1–6°C

Answer

Packed RBCs must be stored at 1–6°C in the blood bank refrigerator and have a shelf life of up to 42 days with additive solutions.

Medical Technologist Test Practice Test

Medical Technologist Test Practice Test

Medical Technologist Test Blood Banking 1