HIV-1 Antibody Test (Qualitative) – HIV gp160 Protein

Why This Test Is Done

Your healthcare provider may order this test if you have risk factors for HIV (e.g., unprotected sex, shared needles, or exposure to infected blood), symptoms of infection, or if you’re part of a routine screening program. It’s also used during pregnancy or before certain medical procedures to check for infection.

What to Expect Before the Test

No special preparation is needed. A blood sample will be drawn from a vein in your arm. You may feel a slight pinch, but it usually takes a few minutes to complete. If you’re pregnant or breastfeeding, let your provider know before testing.

What the Test Results Mean

A positive result means your body has detected antibodies to HIV-1 gp160, suggesting past or current infection. A negative result means no detectable antibodies were found at this time, but HIV could still be present without antibodies (e.g., in early infection). Follow-up testing (like a confirmatory HIV antibody test) is often needed for a definitive diagnosis.

What Happens Next

If your test is positive, your provider will likely order additional tests (e.g., HIV viral load or antibody confirmation) to confirm infection and guide treatment. If negative, they may recommend retesting later if you have ongoing risk factors.