HomeAnswersHIV/AIDS specialisthiv testingHow long should I wait after taking PEP for the next tests?

Is eight days time enough to get through the window period after sex?

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The following is an actual conversation between an iCliniq user and a doctor that has been reviewed and published as a Premium Q&A.

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Published At March 24, 2016
Reviewed AtDecember 22, 2023

Patient's Query

Hello doctor,

I had an encounter about a month ago and that have put me at risk of HIV (Human Immunodeficiency Virus). I was out of town for vacation and visited a doctor who prescribed me Truvada and Tivicay as PEP (Post exposure prophylaxis). I finished the 28 days regimen yesterday and tomorrow I have to go for the fourth generation test that has HIV-1 and 2 RNA antibodies testing at the local Planned Parenthood. Eight days back, I got HIV and STD (Sexually Transmitted disease) tests done and they turned out to be negative. Does this time enough to get through the window period and see whether am I infected? And if not, how long should I wait after the PEP regimen to have the tests?

Hi, Welcome to icliniq.com.

Wait for another one more week. Antibody usually becomes positive after three to four weeks of exposure and one more thing repeat the test after two more weeks at different laboratories to rule out any kind of possibilities. As per guidelines, two tests from different laboratories at two weeks interval should be considered confirmatory.

Same symptoms don't mean you have the same problem. Consult a doctor now!

Dr. Atishay Bukharia
Dr. Atishay Bukharia

Dermatology

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