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A member asked:
When after a risky sex exposure a 4th gen test is 100% conclusive?
A doctor has provided 1 answer
4 weeks: The 4th generation DUO HIV test tests for both HIV antibodies as well as the p24 antigen, a viral protein which appears in the blood sooner than antibodies. At 4 weeks this antigen will be detectable if present. These tests are so accurate that further testing beyond 28 days is no longer recommended as long as you have not had a repeat exposure of concern. You should consider yourself not infected
Answered 10/4/2020
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Related Questions
A member asked:
If I tested for HIV 1/2 4TH GEN, RFLX CONF at 7 months in a lab blood taken from vein exposure was protected vaginal and oral from sex worker. Do I have to take RNA PCR test to make sure my test is conclusive and do not have hiv,took 9 4th gen tests?
4 doctors weighed in across 2 answers
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Hi Dr. Would a 2-1-1 (on demand) PrEP, in which 2 tabs of Truvada before sex exposure and 1 tab for next 2 days after exposure, increase the window period for 4th gen HIV test? if yes then when would be the best period for conclusive testing? Thanks?
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