K-positive donor red cells were mistakenly transfused to a r…
K-positive donor red cells were mistakenly transfused to a recipient (patient) with anti-K and the patient had a transfusion reaction. The patient’s posttransfusion blood sample has a positive direct antiglobulin test (DAT) with polyspecific antihuman globulin (AHG). The direct antiglobulin test is positive because anti-K is an __________ antibody that has sensitized (attached to) the __________ cells in vivo.
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