The Nurse Is Caring for a Client with a Suspected

The nurse is caring for a client with a suspected autoimmune disorder. What concept related to the client's condition does the nurse recognize is true? Select all that apply.

A) It is necessary to determine that immunologic findings do not have another cause.
B) Diagnosis is currently based on serologic testing and clinical findings.
C) Each method of serologic testing involves either concentrating or diluting the client's serum.
D) Genetic testing is considered the most reliable way to diagnose autoimmune disorders.
E) Serologic testing reveals autoantibodies directed against cellular components.