FREE Medical Laboratory Technician Blood Banking and Transfusion Questions and Answers

Question 1

A patient experiences fever, chills, and flank pain 15 minutes after the start of a red blood cell transfusion.
The transfusion is stopped immediately.
What is the most likely cause of this transfusion reaction?

Accepted Answer

Acute hemolytic transfusion reaction

Answer

Febrile non-hemolytic reaction

Answer

Allergic reaction

Answer

Transfusion-associated circulatory overload (TACO)

Question 2

Which of the following blood components must be prepared from a whole blood donation within 8 hours of collection to maintain optimal levels of all coagulation factors?

Accepted Answer

Fresh Frozen Plasma (FFP)

Answer

Packed Red Blood Cells (PRBCs)

Answer

Cryoprecipitate

Answer

Platelets

Question 3

An ABO discrepancy is observed in a 75-year-old patient. The forward typing shows A positive, while the reverse typing shows no reaction with A1 cells or B cells. What is the most likely cause of this discrepancy?

Accepted Answer

Weak or missing antibodies

Answer

Presence of a cold autoantibody

Answer

Subgroup of A

Answer

Recent transfusion with group O blood

Question 4

A Direct Antiglobulin Test (DAT) is performed to detect which of the following?

Accepted Answer

In-vivo sensitization of red blood cells with antibodies or complement

Answer

Unexpected antibodies in the patient's serum

Answer

Antigens on the patient's red blood cells

Answer

In-vitro sensitization of reagent red blood cells

Question 5

To prevent alloimmunization to leukocyte antigens in chronically transfused patients, which blood product modification is most effective?

Accepted Answer

Leukoreduction

Answer

Irradiation

Answer

Washing

Answer

Volume reduction

Question 6

A trauma patient with blood type O negative arrives at the emergency department. The blood bank has a limited supply of O negative red blood cells. Which of the following blood types can be safely transfused to this patient as an alternative if O negative is unavailable?

Accepted Answer

No other type is safe

Answer

O positive

Answer

A negative

Answer

B negative

A patient experiences fever, chills, and flank pain 15 minutes after the start of a red blood cell transfusion.The transfusion is stopped immediately.What is the most likely cause of this transfusion reaction?

A patient experiences fever, chills, and flank pain 15 minutes after the start of a red blood cell transfusion.
The transfusion is stopped immediately.
What is the most likely cause of this transfusion reaction?