HIV Antibody Screening Test (Serum/Plasma)

What This Test Measures

The test looks for HIV antibodies in your blood or plasma. Antibodies are proteins your immune system produces after exposure to HIV. If your body has been exposed to HIV, these antibodies may be present. This test is designed to detect antibodies that appear within weeks to months after infection.

How the Test Works

Your healthcare provider will take a blood sample. The sample is tested using an immunoassay method to identify HIV antibodies. This method is highly sensitive and specific for detecting HIV antibodies in most cases.

Why It’s Done

HIV antibody screening is typically performed as part of routine health check-ups, especially for high-risk groups (e.g., sexually active individuals, people with multiple sexual partners, intravenous drug users, or those with sexually transmitted infections). It can also be recommended if you’ve had unprotected sex with someone whose HIV status is unknown or if you suspect exposure.

What to Expect Before the Test

There are usually no special preparations needed. You may be asked to fast before the test, but this is not always required. Bring any medications you’re currently taking, as some may affect test results.