During suspected transfusion reactions, which sample collection is indicated for repeat ABO/Rh typing and DAT?

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Multiple Choice

During suspected transfusion reactions, which sample collection is indicated for repeat ABO/Rh typing and DAT?

When a transfusion reaction is suspected, confirming the recipient’s current blood group and checking for immune attachment of antibodies to red cells are essential. Repeating ABO and Rh typing ensures there hasn’t been a labeling or clerical error and that the investigation starts with an accurate patient type. The direct antiglobulin test (DAT) detects antibodies or complement bound to the patient’s red cells, which is a key sign of an immune-mediated hemolytic transfusion reaction. Collecting samples for both repeat ABO/Rh typing and DAT provides crucial information to confirm or refute immune hemolysis and to guide immediate management. Urine or stool samples don’t inform ABO/Rh status or DAT and aren’t indicated for this aspect of the workup.

When a transfusion reaction is suspected, confirming the recipient’s current blood group and checking for immune attachment of antibodies to red cells are essential. Repeating ABO and Rh typing ensures there hasn’t been a labeling or clerical error and that the investigation starts with an accurate patient type. The direct antiglobulin test (DAT) detects antibodies or complement bound to the patient’s red cells, which is a key sign of an immune-mediated hemolytic transfusion reaction. Collecting samples for both repeat ABO/Rh typing and DAT provides crucial information to confirm or refute immune hemolysis and to guide immediate management. Urine or stool samples don’t inform ABO/Rh status or DAT and aren’t indicated for this aspect of the workup.

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