HIV-1 Antibody Screening and Confirmation by Qualitative Immunoassay (Serum/Plasma)

Why This Test Is Done

HIV antibody tests are often performed as part of routine health checkups, especially if you have risk factors for HIV, such as unprotected sex, shared needles, or exposure to infected blood. They may also be recommended if you have symptoms like unexplained weight loss, frequent infections, or fatigue. Some healthcare providers may screen all adults at higher risk during regular visits.

How the Test Works

The test uses a blood sample (either serum or plasma) to detect HIV antibodies through a qualitative immunoassay method. This means the test tells you whether antibodies are present but does not provide a precise amount. The result is either positive (indicating possible exposure) or negative (no detectable antibodies).

What the Results Mean

A positive result suggests you may have been infected with HIV, but further testing is needed to confirm. A negative result means no detectable antibodies were found at the time of testing. False negatives can occur if tested too soon after exposure, so follow-up testing may be advised.

Next Steps and Follow-Up

If your result is positive, your healthcare provider will likely order additional tests (like a viral load test) to confirm HIV infection and determine your treatment options. If negative, retesting after 3–6 months is recommended if you suspect recent exposure. Always discuss results with your provider to understand next steps.