Ten Days After the Transfusion of 2 Units, a Patient

question 2

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 posttransfusion sample.

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Definitions:

Parietal Pericardium

The outer fibrous layer of the pericardium, which surrounds the heart and roots of its major blood vessels.

Lobes

Divisions or sections of an organ separated by fissures or grooves, commonly referred to in the brain, lungs, and liver.

Internal Nares

Openings inside the nose that connect the nasal cavity to the back of the throat.

Choanae

The internal nostrils located at the back of the nasal cavity in vertebrates, connecting the nasal passages to the throat.