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Doctor insights on: Hiv Rna Test

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What is the window period for p42 antigen/ antibody dual 4th gen HIV test? And the window period for HIV RNA PCR test? When can it be conclusive?

What is the window period for p42 antigen/ antibody dual 4th gen HIV test? And the window period for HIV RNA PCR test? When can it be conclusive?

See below: Please consult this site for a detailed answer. Nucleic acid tests are conclusive about a month after acquiring infection. http://www.sfaf.org/hiv-info/testing/hiv-test-window-periods.html ...Read more

Dr. Tiffanie Noonan
16 doctors shared insights

Hiv (Definition)

Hiv infection is caused by a retrovirus....This retrovirus binds to CD4 cells (for the most part). You may detect the virus by several different methods. An elisa test (enzyme linked immunosorbent assay). You may also detect it by doing a test referred to as a western blot (a gel protein electrophoresis). Thirdly by pcr (polymerase chain reaction) which ...Read more


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Is my 8 wks 2 day PCR RNA + 4th Gen test negative conclusive for HIV infection after vaginal exp? Or do i need to test after 12 wks or it has to be after 13 wks? Pls answer, Thanks for any response

Is my 8 wks 2 day PCR RNA + 4th Gen test negative conclusive for HIV infection after vaginal exp? Or do i need to test after 12 wks or it has to be after 13 wks? Pls answer, Thanks for any response

Relax, Mike: I understand that you're a man worried about HIV after an unprotected episode of intercourse with a woman. The nucleic acid tests are almost always positive by this time -- we can't even estimate the frequency of their turning positive only at 12 weeks because history isn't always accurate. Retest only if you or someone close to you is obsessed over it. Love wisely and well from now on. Cheers. ...Read more

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When is a hiv rna test conclusive?

When is a hiv rna test conclusive?

Timing of test: HIV RNA test at 3 months or more after exposure is conclusive. Test may turn positive sooner, but for a negative result to be conclusive it needs to be about 3 months or more after exposure. ...Read more

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Is an HIV RNA test after 12 days accurate?

Is an HIV RNA test after 12 days accurate?

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. In the meantime, you can be very confident you weren't infected. ...Read more

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HIV RNA test 10 days post exposure-accurate?

HIV RNA test 10 days post exposure-accurate?

RNA-testing: at 14 day post exposure---an undetectable HIV RNA is a strong sign that you are not infected. I would do the recommended testing at 4-6 weeks with antibody testing if negative --home free ...Read more

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Is a negative Hiv Rna test conclusive at 6 weeks ?thanks

Is a negative Hiv Rna test conclusive at 6 weeks ?thanks

Nearly so: A negative HIV nucleic acid test at 3 months would be conclusive. A negative result at 6 weeks should be repeated in 6 weeks to make sure. See this site for more info on this topic. http://www.cdc.gov/hiv/basics/testing.html ...Read more

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When is better to take a HIV rna test at 6 or 7 weeks from exposure ?and is the test conclusive by this time ?thanks

HIV test: An HIV nucleic acid test at 7 weeks after exposure is an appropriate test and timing. If it is negative that would essentially rule out HIV. ...Read more

Dr. Ed Friedlander
1,422 doctors shared insights

Human Immunodeficiency Virus (Definition)

Human immunodeficiency virus (HIV) is a lentivirus (a member of the retrovirus family) that causes acquired immunodeficiency syndrome (aids), [1][2] a condition in humans in which progressive failure of the immune system allows life-threatening opportunistic infections ...Read more


Rna (Definition)

This is a building block for dna. Rna is what makes up the double helix and ...Read more