Which of the Following Is Necessary to Prevent an Anaphylactic

Multiple Choice

Which of the following is necessary to prevent an anaphylactic reaction due to a known IgA antibody in a patient?

A) All red blood cell units should be irradiated.
B) Red blood cell units should be washed.
C) All blood components should be leukocyte-reduced.
D) Patient should be given antihistamine before transfusion.