A patient is suspected as having a blood transfusion reaction.Which laboratory test should the nurse expect to be done to confirm this diagnosis?

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The direct Coombs' test confirms the diagnosis of transfusion reaction.In the laboratory,a small amount of the patient's RBCs is washed to remove any unattached antibodies.Antihuman globulin is added to see if agglutination (clumping)of the RBCs results.If agglutination occurs,an immune reaction such as a hemolytic transfusion reaction is taking place.A.Skin testing is used to determine the presence of a type I hypersensitivity reaction.C.D.These tests might be done to determine the presence of serum sickness.

A Patient Is Suspected as Having a Blood Transfusion Reaction