How do HIV tests work and what's involved?
An antigen/antibody test performed by a lab on blood from a vein can usually detect HIV 18 to 45 days after exposure. There is also a rapid antigen/antibody test available that is done with a finger stick.
Last updated on 29 Jun 2023
They are conclusive but you can repeat the test after 90 days for best results.
Very accurately
No
There are three types of tests used to diagnose HIV infection: antibody tests, antigen/antibody tests, and nucleic acid tests (NATs).
Yes
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