Ten days after the transfusion of 2 units,a patient had a 2 g/dL drop in hemoglobin and was slightly jaundiced.No evidence of bleeding was found.What tests would be helpful in determining whether the patient is experiencing a delayed hemolytic transfusion reaction?
A)Culture the donor unit.
B)Compare pretransfusion and posttransfusion ABO and D typing.
C)Perform hepatitis B surface antigen test.
D)Perform an antibody screen on the current posttransfusion sample.

Question

Quizplus · Accepted Answer

A delayed transfusion reaction is due to alloantibodies that have developed from the red cells recently transfused or from antibodies made against prior red cell exposure.

Ten Days After the Transfusion of 2 Units,a Patient Had