FREE Medical Laboratory Technician Blood Bank Compatibility Questions and Answers

Question 1

A 55-year-old male requires a blood transfusion. His blood type is A positive. Which of the following blood types would be considered compatible for a transfusion of packed red blood cells?

Accepted Answer

A positive and A negative

Answer

O positive and O negative

Answer

B positive and B negative

Answer

AB positive and AB negative

Question 2

Which of the following is the primary reason why O negative blood is considered the 'universal donor' for packed red blood cell transfusions?

Accepted Answer

It lacks A, B, and Rh (D) antigens on the red blood cell surface.

Answer

It contains both anti-A and anti-B antibodies in the plasma.

Answer

It has a higher concentration of hemoglobin compared to other blood types.

Answer

It is the most common blood type in the general population.

Question 3

A patient with type B negative blood requires a plasma transfusion. Which of the following plasma types would be considered compatible?

Accepted Answer

AB positive plasma

Answer

O negative plasma

Answer

B positive plasma

Answer

A negative plasma

Question 4

During a routine pre-transfusion compatibility test, a crossmatch shows incompatibility in the antiglobulin phase. What is the most likely reason for this finding?

Accepted Answer

Presence of an unexpected antibody in the recipient's plasma reacting with donor red cell antigens.

Answer

Bacterial contamination of the donor blood unit.

Answer

Recipient's blood type is O positive and donor is A positive.

Answer

Incorrect labeling of the blood samples leading to a clerical error.

Question 5

Which of the following scenarios presents the LEAST risk for a hemolytic transfusion reaction due to ABO incompatibility?

Accepted Answer

Transfusing O negative packed red cells to an A positive recipient.

Answer

Transfusing A positive packed red cells to an O positive recipient.

Answer

Transfusing B negative plasma to an AB negative recipient.

Answer

Transfusing AB positive packed red cells to a B positive recipient.

Question 6

A medical laboratory technician is performing a type and screen. The patient's red cells agglutinate with anti-A antiserum but not with anti-B antiserum or anti-D antiserum. The patient's serum reacts with A1 cells but not with B cells. What is the patient's ABO/Rh blood type?

Accepted Answer

A negative

Answer

A positive

Answer

B negative

Answer

O negative

A 55-year-old male requires a blood transfusion.His blood type is A positive.Which of the following blood types would be considered compatible for a transfusion of packed red blood cells?

A 55-year-old male requires a blood transfusion.
His blood type is A positive.
Which of the following blood types would be considered compatible for a transfusion of packed red blood cells?