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

question 25

Multiple Choice

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.

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