A Patient Who Is Preparing to Undergo a Blood Transfusion

Multiple Choice

A patient who is preparing to undergo a blood transfusion is suspected of having an immunoglobulin deficiency that could result in anaphylaxis when the blood is transfused.Which test would be most appropriate for confirming this suspicion?

A) Immunofixation electrophoresis (IFE)
B) Immunoglobulin E (IgE)
C) Immunoglobulin A (IgA)
D) Immunosuppressant cyclosporine