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Dr. Andrew Rynne
MD
Dr. Andrew Rynne

Family Physician

Exp 50 years

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How Accurate Is The Pcr RNA Test

Hi. I had unprotected sex 24 days ago. I had pcr RNA qualitative test at 16 days with result of not detected.
On day 18 a rash appeared on left side of stomach and the last two days I had a mild fever.
I am really anxious and I am having the duo test in the next two days. How accurate is the pcr RNA test?
Thanks
Tue, 27 May 2014
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Radiologist 's  Response
Hi,
Thanks for writing in.

HIV RNA PCR test details are as follows

Works from: at least 7-10 days after unprotected sex.
Accuracy: 99.89% accurate for HIV 1&2

If there’s a chance you may have caught HIV in the last couple of weeks and you want to know for sure, you can request a PCR RNA test at certain clinics. They are more expensive and complicated than regular tests so aren’t offered by all clinics.
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How Accurate Is The Pcr RNA Test

Hi, Thanks for writing in. HIV RNA PCR test details are as follows Works from: at least 7-10 days after unprotected sex. Accuracy: 99.89% accurate for HIV 1&2 If there’s a chance you may have caught HIV in the last couple of weeks and you want to know for sure, you can request a PCR RNA test at certain clinics. They are more expensive and complicated than regular tests so aren’t offered by all clinics.