Can you detect HIV after 14 days?

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Can you detect HIV after 14 days?

Types of HIV Tests and Their Window Periods Antigen/Antibody Test—An antigen/antibody test performed by a laboratory on blood from a vein can usually detect HIV infection 18 to 45 days after exposure. Antigen/antibody tests done with blood from a finger prick take longer to detect HIV (18 to 90 days after an exposure).

How long after a possible exposure should someone wait before being tested for HIV?

One recommended strategy is to get tested 2-4 weeks, 3 months, and 6 months after a risky exposure. Using a sensitive antigen/antibody HIV test, of those who are infected, most will test positive at 1 month; almost all will test positive at 3 months; and the rest will test positive at 6 months.

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What happens if my HIV test results are negative?

If you get an HIV test after a potential HIV exposure and the result is negative, get tested again after the window period. Remember, you can only be sure you are HIV-negative if:. You haven’t had a potential HIV exposure during the window period. If you do have an exposure, then you will need to be retested.

How soon after exposure can you get an HIV test?

In general, antibody tests that use blood from a vein can detect HIV sooner after infection than tests done with blood from a finger prick or with oral fluid. If you get an HIV test after a potential HIV exposure and the result is negative, get tested again after the window period. Remember, you can only be sure you are HIV-negative if:

How long does it take for a combination HIV test to work?

Combination tests are now recommended for HIV testing that’s done in labs and are becoming more common in the U.S. Most, but not all people, will make enough antigens and antibodies for fourth-generation or combination tests to accurately detect infection 2 to 6 weeks (13 to 42 days) after infection.

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What happens if I get tested for HIV outside of hospital?

If you are tested outside of a health care setting or lab (such as at a community-based organization, mobile testing van, or elsewhere) you will likely receive a rapid HIV test (oral fluid or finger stick.) If the test comes back negative, and you haven’t had a possible exposure during the previous 3 months, you can be confident you don’t have HIV.