A Patient's Record Indicated That He Had a History of an Antibody

Multiple Choice

A patient's record indicated that he had a history of an antibody to HPA-1a.What is the significance of this antibody if this patient requires a platelet transfusion?

A) The patient would require HPA-1a negative platelets,which are relatively rare.
B) Transfusion of HLA-matched platelet donors would yield a better response.
C) Washed platelets are necessary to avoid antibody interference.
D) No testing is necessary because the frequency of HPA-1a positive donors is very rare.