Prior to a blood transfusion, what is the purpose of performing a type and cross-match test?

Prior to a blood transfusion, what is the purpose of performing a type and cross-match test?

• A. To determine whether Rh agglutinins are present
• B. To determine whether there is ABO incompatibility
• C. To determine the presence of A or O antigens
• D. To determine the compatibility of his blood with donor blood

Answer: (D)

Ensuring compatibility between donor and recipient blood to prevent a transfusion reaction. A type and cross-match combines ABO and Rh typing with a crossmatch that tests the recipient’s serum against donor red cells to see if any antibodies would cause agglutination or hemolysis. If no reaction occurs, the donor blood is considered compatible for the recipient, making transfusion safe. The process isn’t just about identifying a specific antigen or antibody in isolation; it verifies that the overall donor-recipient combination will respond safely.

Ensuring compatibility between donor and recipient blood to prevent a transfusion reaction. A type and cross-match combines ABO and Rh typing with a crossmatch that tests the recipient’s serum against donor red cells to see if any antibodies would cause agglutination or hemolysis. If no reaction occurs, the donor blood is considered compatible for the recipient, making transfusion safe. The process isn’t just about identifying a specific antigen or antibody in isolation; it verifies that the overall donor-recipient combination will respond safely.