HIV-1 Antibody Screening and Confirmation Test (Serum/Plasma)

Why This Test Is Done

Your healthcare provider may order this test if you have symptoms of HIV (such as fever, fatigue, or swollen lymph nodes), have risk factors for HIV (like unprotected sex or shared needles), or are part of a group at higher risk. It may also be part of routine testing for certain populations or during pregnancy.

The test uses an immunoassay method to detect HIV antibodies in your serum or plasma. The test first screens your sample to identify potential antibodies, then confirms the result to ensure accuracy.

The test involves drawing blood from a vein in your arm. You may feel a slight pinch, but it usually doesn’t cause significant discomfort. The blood is then sent to a lab for testing.

What the Results Mean

A positive result means your blood contains antibodies to HIV, suggesting you may have been infected. A negative result means no detectable antibodies were found, but this doesn’t guarantee you’re not infected—HIV testing should be repeated if you have risk factors. A reactive (positive) screening result will be confirmed with additional testing.

What to Expect After the Test

After your blood is drawn, you can return to your normal activities. You’ll receive your results from your healthcare provider, who may also explain next steps, such as follow-up testing or treatment options if HIV is confirmed.