Which laboratory value does the nurse expect to be elevated when a client develops a facial rash and urticaria after receiving penicillin?

Immunoglobulin e (Ige)

Igeare antibodies present in the blood that are especially present to deal with bacteria and viruses that cause allergies. When your body experiences an allergic reaction the body increases the production of said antibody anda higher amount than normal is noticed during a blood test. Since penicillin is derived from bacteria it might be a trigger for allergy.

Ige-rationale: Immunoglobulinee (ige) is involved with an allergic reaction. Iga combines with antigens and activates complement. Igb coats the surface of b lymphocytes. Igg is the principal immunoglobulin formed in response to most infectious agents.