A Patient Is Receiving a Transfusion of Packed Red Blood

A patient is receiving a transfusion of packed red blood cells. Shortly after initiation of the transfusion, the patient begins to exhibit signs and symptoms of a transfusion reaction. The patient is suffering from which type of hypersensitivity?

A) Anaphylactic (type 1)
B) Cytotoxic (type II)
C) Immunecomplex (type III)
D) Delayed type (type IV)