Anonymous
Hello there. I recently had what I believe to be a "negligible risk" encounter (received unprotected oral sex) I noticed shortly after the encounter that I had some minor scrapes on my penis, due to "manscaping" I performed earlier in the evening. Of course even knowing the risk is low, I'm still very worried and have been looking to take an HIV test. The one I've been considering doing is an RNA test at a facility run by STDcheck.com According to thee website, the results are conclusive if taken at 9-11 days post exposure. My questions are as follows
1. How accurate is the statement of the test being conclusive at that point?
2. If the test is negative at the 10 day mark, should I consider myself clear?
Thanks for what you do
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Anonymous
Hello,

Thank you for choosing the AIDS Vancouver Helpline as your source of information for your inquires. The best way to determine your HIV status is through testing, and it's good to hear you have done your research prior. I hope I will be able to offer you some concrete answers to both you questions:

How accurate is the statement of the test being conclusive at this point?

The Pooled RNA (a.k.a. Early test) NAAT test is:

* used used to measure viral RNA before detectable antibodies have been produced
* 90% accurate at 10 to 12 days post-exposure, and 99% accurate at 12 weeks post-exposure

The NAAT (PCR RNA & DNA) test is:

* used to measure the genetic material of HIV before antibodies can be detected
* 99.6% accurate at 2 weeks to 3 weeks post-exposure

If that test is negative at the 10 day mark, Should I consider myself clear?

It sounds like you received the Pooled RNA (a.k.a. "Early test) at 10 days post exposure, and many HIV specialists consider the results of this test conclusive when it is carried out at this time.

Similarly, many HIV specialists consider the results of an NAAT (PCR RNA & DNA) test conclusive at 2 to 3 weeks post-exposure, when it is carried out.

We follow guidelines from the BC CDC and they suggest that re-testing at 12 weeks post-exposure is always the safest possible measure.

I noticed that you had engaged in receiving oral sex (without condom) which is considered a negligible-risk activity, as you have mentioned:

* A substance in saliva (enzyme) helps break down HIV during this activity
* The urethra (in the penis) does not usually provide direct access to the bloodstream when it is not contained inside the anus or vagina
* There has never been a confirmed report of acquiring HIV from this activity (receiving oral sex)

As well, I have attached a copy of the the "HIV Transmission Equation" below:

HIV TRANSMISSION EQUATION


BODY FLUID
+
ACTIVITY
+
DIRECT ACCESS TO BLOODSTREAM
---------- -------- ----------------------------
• blood (including menstrual) • unprotected anal or vaginal intercourse • vagina
• semen • sharing needles • anus
• pre-cum • mother to child (in specific cases) • urethra in the penis
• rectal secretions • open cuts and sores (in theory)
• vaginal fluids • other mucosal membranes
• breast milk • points of needle injection
I hope this information helps answer your inquiries. Feel free to contact the AIDS Vancouver Helpline again in the future:

By phone: (604) 253-0566 ext 299

By Email:helpline@aidsvancouver.org

Online:http://www.aidsvancouver.org

In good health,
Gary and Marta, AIDS Vancouver Volunteer.





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