Question

which test is the confirming test for people who initially tested antibody - positive in the screening elisa test for hiv?
multiple choice
weil - felix
immunochromatography
radioimmunoassay (ria)
western blot
immunoelectrophoresis

Explanation:

In HIV testing, after a positive ELISA (screening) test, the confirmatory test is the Western blot. It detects specific HIV antigens/antibodies to confirm infection, while other options like Widal - Felix (for typhoid), immunochromatography (rapid tests, not confirmatory), RIA (radioimmunoassay, not standard confirmatory for HIV), and immunoelectrophoresis (not for HIV confirmation) are not used for HIV confirmatory testing post - ELISA.

Answer:

D. Western blot