A Nurse Counsels a Client to Have the Enzyme-Linked Immunosorbent

A nurse counsels a client to have the enzyme-linked immunosorbent assay (EIA) test. Which of the following best describes the rationale for this test?

A) To indicate the presence of the antibody to HIV
B) To reveal whether the client has AIDS
C) To isolate the HIV virus
D) To confirm HIV after having a positive Western blot