MLS Blood Banking & Transfusion Medicine

Question 1

Which blood type is considered the universal donor for packed red blood cells?

Accepted Answer

O negative

Answer

A negative

Answer

AB positive

Answer

B negative

Question 2

A patient with Type A blood has which naturally occurring antibody in their serum?

Accepted Answer

Anti-B

Answer

Anti-A

Answer

Anti-A and Anti-B

Answer

No ABO antibodies

Question 3

Which crossmatch method is most sensitive for detecting clinically significant alloantibodies?

Accepted Answer

Antiglobulin (indirect) crossmatch

Answer

Immediate spin crossmatch

Answer

Electronic crossmatch

Answer

Saline agglutination crossmatch

Question 4

A positive Direct Antiglobulin Test (DAT) indicates that:

Accepted Answer

The patient's red blood cells are coated with IgG or complement in vivo

Answer

The patient has unexpected antibodies free in serum

Answer

ABO incompatibility exists between donor and recipient

Answer

The patient is Rh D positive

Question 5

At what temperature and conditions must platelets be stored in the blood bank?

Accepted Answer

20–24°C with continuous gentle agitation

Answer

1–6°C with no agitation

Answer

−18°C or colder

Answer

4°C with intermittent agitation

Question 6

Which Rh antigen is considered the most clinically significant and immunogenic?

Accepted Answer

Rh D

Answer

Rh C

Answer

Rh E

Answer

Rh c

Question 7

Which blood type is the universal recipient for packed red blood cells?

Accepted Answer

AB positive

Answer

O positive

Answer

A positive

Answer

B positive