2026 PRACTICE QUESTIONS AND VERIFIED
ANSWERS ALREADY GRADED A+
◉All of the following are cause for donor deferral EXCEPT? Answer:
An individual weighs 115 pounds at the time of donor screening
◉A 27-year-old female presents to her physician after suffering a
spontaneous abortion. Though rare, which antibody may be the
etiological agent? Answer: Anti-P
◉Recombinant Factor IX is indicated for which of the following?
Answer: Hemophilia B
◉Donor red blood cells (RBCs) were collected on July 12th of this year.
The RBCs were then frozen in glycerol on July 17th (5 days later) and
stored at -65o C.
What should the expiration date read on the frozen RBC unit? Answer:
July 12th; 10 years from collection date
◉A patient is experiencing prolonged bleeding following a transfusion.
The complete blood count indicates that the patient's platelet count has
, decreased following the transfusion. What is the most likely cause of
this issue? Answer: Posttransfusion purpura
◉Rh Immune Globulin (RhIG) is used to prevent the active
immunization to the D antigen in women who are Rh negative carrying
an Rh positive fetus. One dose of RhIG (equal to 300 µg of World
Health Organization reference material) contains enough anti-D to
protect against: Answer: 30 mL of whole blood
◉Which of the following characteristics of hemolytic disease of the
fetus and newborn (HDFN) is NOT different for ABO and Rh HDFN?
Answer: Antibody is IgG
◉ABO blood groups were discovered by: Answer: Landsteiner
◉When would unexpected positive reactions be encountered during
ABO forward typing? Answer: Acquired B antigen
◉Which of the following choices is the basic technique used to detect
unexpected antibodies with a commercial set of reagent cells? Answer:
Indirect antiglobulin test
◉A pregnant female has been injected with Rh Immune Globulin
(RhIG) antenatally (28 weeks gestation) and has a positive antibody
screen at delivery. The antibody has been confirmed as anti-D alone and