Section 4.6
Transfusion Reactions

A patient had a transfusion reaction to packed red blood cells. The medical laboratory scientist began the laboratory investigation of the transfusion reaction by assembling pre- and post-transfusion specimens and all paperwork and computer printouts.
What should he do next?

Perform a DAT on the post-transfusion sample Check for a clerical error(s) Repeat ABO and Rh typing of patient and donor unit Perform an antibody screen on the post-transfusion sample