Anonymous
Hello, Recently i had unprotected oral sex with high risk woman. I am planning to take HIV-1 RNA Quant-Ultrasensitive PCR Test (Range: 48-10,000,000 copies/mL) on 15 days. Should I take test on 15th day from incident or should i wait till 21 days. What is recommended approach? Thanks for your help!
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Anonymous
Hi there,
Thank you for using the AIDS Vancouver Helpline as your source for HIV/AIDS related information. 
PCR RNA tests look directly for the genetic material of HIV itself and is a common way of testing for a variety of different organisms.  The window period for this test is between 2-3 weeks, but there is no reported accuracy during that time until after 21 days post exposure.  While there is a good chance that the PCR RNA test will be able to detect HIV at 15 days, officially the accuracy of this test is 99.6% after 12 weeks post exposure.
If you choose to test at 15 days it can be a good indicator of your status but we do recommend re-testing after 3 weeks (21 days) and having a follow-up antibody test at 12 weeks for completely conclusive results.
In addition, receiving unprotected oral sex is considered negligible risk for HIV transmission- this means there has never been a single case of HIV transmission this way. Giving oral sex to someone who is HIV+ is considered low risk, meaning that it is still quite unlikely that HIV could have been passed this way, however, it is great to hear you got tested as testing is the only way to know for sure.
Additionally, there are many common sexually transmitted infections (STI's) that can be transmitted through unprotected oral sex.  We highly recommend you discuss this with your Health Care Professional to determine if testing is necessary.
Also, it is important to keep in mind that a particular person cannot be high or low risk but rather, activities are. For example, unprotected vaginal or anal sex is high risk regardless of the gender, occupation, nationality, ethnicity or sexual orientation of the person it was with.
Please let us know if we can provide any more information or have additional questions.  Or if you would like to call and speak to someone at the Helpline, you can do so anonymously and confidentially by calling 640-696-4666, Monday to Friday between 9 am and 4 pm.
Cheers,CameronAIDS Vancouver Helpline VolunteerE-mail: helpline@aidsvancouver.orgPhone (Mon-Fri 9-4pm): (604) 696-4666Web: http://www.aidsvancouver.org/helpline
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