What is antibody test for HIV?

An HIV antibody test checks for HIV antibodies in a sample of blood, urine, or saliva. It can take from 2 weeks to 6 months after a person is infected with HIV before the antibodies are found with this test. It is the most common type of HIV test.

Is HIV antibody test a blood test?

HIV antibody testing—all HIV antibody tests used in the U.S. detect HIV-1 and some tests have been developed that can also detect HIV-2. These tests are available as blood tests or tests of oral fluid. HIV antibody tests can detect infections in most people 3-12 weeks after exposure.

What is the first test for HIV antibodies?

Enzyme-linked immunosorbent assay (ELISA). This test is usually the first one used to detect infection with HIV. If antibodies to HIV are present (positive), the test is usually repeated to confirm the diagnosis. If ELISA is negative, other tests usually aren’t needed.

Which blood test is most accurate at confirming HIV?

Antigen/antibody tests conducted in a lab (as opposed to on-site rapid tests) are the most accurate types of HIV test with at least a 99% accuracy rate.