An Antibody Screen on a Patient with a Prior History

question 15

Multiple Choice

An antibody screen on a patient with a prior history of transfusion was negative.The patient had an indication to perform an AHG crossmatch on file.The crossmatch was incompatible with 1 of 5 units selected at AHG phase.What is the next step in the investigation?

• A) Perform a prewarm procedure for crossmatching
• B) Perform a direct antiglobulin test on the incompatible unit
• C) Redraw the patient and begin a new crossmatch
• D) Crossmatch a new unit and discard the incompatible unit

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