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Q. While on PEP, is HIV RNA PCR test conclusive?

Answered by
Dr. Kakkar
and medically reviewed by iCliniq medical review team.
This is a premium question & answer published on Jan 24, 2018

Hi doctor,

I am a 28 year old male and had unprotected anal-vaginal intercourse with a sex worker, me being the active partner. I was put on PEP immediately within 11 hours post exposure and the first dose of PEP was the tablet TLE (Tenofovir/Lamuvidine/Efavirenz), given to me on the morning of 10th. I was asked to follow up the next day with an HIV specialist and she changed my PEP regime to a combination of Tenofovir/Emtricitabine and Dolutegravir as they are more effective. As I was worried and had fever for two days, I did an HIV PCR RNA test qualitative exactly after 10 days from exposure. The results came back 'not detected'.

Dr. Kakkar

Dermatology HIV/AIDS Specialist Venereology
#

Hello,

Welcome to icliniq.com.

I have noted your concern.

Perhaps your question was not completely typed. Anyways, your PEP regime of Tenofovir/Emtricitabine and Dolutegravir is recommended one. Continue with it for 28 days.

As far as the HIV PCR RNA test is concerned it is not a reliable test while on PEP. You need to wait for your PEP to be over before testing. Regards.

For further queries consult an HIV AIDS specialist online --> https://www.icliniq.com/ask-a-doctor-online/HIV-AIDS-specialist


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Hi doctor,

Thank you for the reply. My entire question was not submitted though. I have completed my PEP today. What are the chances of contracting the virus, from this single exposure? I asked the partner to get tested and she did it after a couple of weeks and she told that she was negative, though I have not seen the reports. And since I started PEP within 11 hours post exposure and complete adherence to it, what is the success rate of this PEP to prevent the infection?

Dr. Kakkar

Dermatology HIV/AIDS Specialist Venereology
#

Hello,

Welcome back to icliniq.com.

I would like to know if you are circumcised or not. The risk per act of unprotected vaginal intercourse with an HIV positive female is estimated to be 0.04 % (1 in 2500). The risk per act of unprotected anal intercourse for an insertive partner varies from 0.11 % or 1 in 909 (circumcised) to 0.62 % or 1 in 161 (uncircumcised).

PEP is definitely protective but it is not 100 %. In various studies, the seroconversion rates have been reported to be reduced between 50 to 80 % with PEP. Regards.

For more information consult an HIV AIDS specialist online --> https://www.icliniq.com/ask-a-doctor-online/HIV-AIDS-specialist


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Hello doctor,

I am not circumcised and moreover, if the PEP has been effective, I have also got an HIV ELISA 4th gen test done today. So, will a negative result conclude or do I have to wait for another test to be conclusive?

Dr. Kakkar

Dermatology HIV/AIDS Specialist Venereology
#

Hello,

Welcome to icliniq.com.

For a conclusive result, you need to test at four weeks after completing PEP and again at three months after completing PEP.

Do you have any symptoms?

As far as the HIV test of your sexual partner is concerned are you sure she had no other recent sexual partner after you? What was the test that she did? Regards.

For more information consult an HIV AIDS specialist online --> https://www.icliniq.com/ask-a-doctor-online/HIV-AIDS-specialist


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Related Questions:
Is immuno-concentration HIV test conclusive after 15 months of sexual exposure?
What is the risk of HIV through fingering a vagina with a cut on my finger?
What are the side effects of taking post-exposure prophylaxis?
 

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