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HIV Antibody and HIV Antigen (p24)

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Also known as: HIV Screening Tests; AIDS Test; AIDS Screen; HIV Serology; p24 Antigen
Formal name: HIV-1 and HIV-2 Antibody and Antigen Evaluation

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At a Glance

Why Get Tested?

To determine if you are infected with human immunodeficiency virus (HIV)

When to Get Tested?

At least once, when you are 13 to 64 years old; when you think you may have been exposed to the virus; before becoming pregnant or when pregnant; once a year if you are at increased risk of being exposed to the virus

Sample Required?

A blood sample collected from a vein in your arm or from a fingerstick; there are also HIV antibody tests available that can be performed on oral fluid.

Test Preparation Needed?