Blood Banking and Transfusion Medicine Flashcards
7 cards from real Laboratory Science practice questions. Tap to flip, then mark Knew It or Still Learning — missed cards come back until you master them.
Read the first 7 Blood Banking and Transfusion Medicine flashcards as text
Which blood type is considered the universal donor for red blood cell transfusions?
Answer: Type O negative
Type O negative lacks A, B, and Rh(D) antigens, making it safe to transfuse to recipients of any blood type.
What is the primary purpose of the antibody screen in pre-transfusion testing?
Answer: Detect clinically significant unexpected antibodies in patient serum
The antibody screen detects unexpected clinically significant antibodies in the patient's serum that could cause a hemolytic transfusion reaction.
At what temperature should packed red blood cell units be stored?
Answer: 1-6°C
Red blood cells are stored at 1-6°C to slow cellular metabolism and bacterial growth while preventing freezing.
Which additive solution extends the shelf life of red blood cell units to 42 days?
Answer: AS-1 (Additive Solution-1/Adsol)
Additive solutions such as AS-1 (Adsol) provide adenine, glucose, and saline that extend RBC shelf life to 42 days.
The major crossmatch tests compatibility between which two components?
Answer: Recipient serum and donor red cells
The major crossmatch tests recipient serum against donor red cells to detect antibodies that could destroy the transfused cells.
Which blood component is the preferred choice for a patient with hypofibrinogenemia?
Answer: Cryoprecipitate
Cryoprecipitate is the most concentrated source of fibrinogen and is the preferred product for treating hypofibrinogenemia.
What is the correct storage condition for platelet concentrates?
Answer: 20-24°C with continuous agitation
Platelets must be stored at 20-24°C with gentle continuous agitation; refrigeration causes irreversible platelet activation and loss of function.