Aug 10, 2018 · About 95%: RNA testing for HIV isn't usually recommended excapt in very high risk situations, like unprotected sex with a known-infected partner. But a negative result at 12 days probably is around 95% conclusive. For 100%, also have an HIV antibody blood test at 4 weeks. The combination of those two negative results will be conclusive.
For most types of HIV tests, you’ll need to wait 2 weeks or more after exposure to get an accurate result. (you might hear them called “fourth generation” tests) can find HIV in 99% of
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