I probably did not express myself clearly. If both you and your partner are negative now, you can be sure. If only you are being tested, the DUO test would provide defintive results at 4 weeks. Sorry if that was unclear. EWH
Ok sorry - I can do the DUO test now, so soon after a potential exposure? I just don't understand when to go in to test for that because online it says the DUO is accurate @ 28 days.
I do not have information about DUO testing by location. You would need to ask locally.
I do not understand your question about the iming of DUO testing, no matter when you test, if you are both negative you have no reason for concern.. EWH
Also - where do I go to get one? Is that one of the standard tests they provide at Planned Parenthood or local health clinics?
Thank you for the answer, Doctor. Unfortunately, the encounter was last Friday evening, Saturday morning - well over 24 hours ago. Would a DUO test still be appropriate? When is too long post-exposure for a DUO test?
Welcome to our Forum. Your questions deal with "shades of gray" in a situation where there are really not sufficient data to provide you more than the larger, more general answers. Sex is sex and penetration is sex. Thus you must consider your penetration of your partner, no matter how "easily" it occurred as an unprotected exposure warranting further evaluation. Certainly it is believed that the repeated friction involved with many sexual encounters, as well as the duration of exposure probably act to increase risk however there are no studies which allow anyone to guess what the relative role of these variables is.
I recommend that you seek to make sure that you work to make sure that you did not get HIV or, for that matter, any other STD through the exposure you describe. The way to do that is with testing. My recommendation would be for both you and your partner to go and get tested for HIV and other STDs at this time. If you can do this, if your partner's tests are negative you have nothing to worry about and if you are negative, he has nothing to worry about. If you both have negative HIV tests at this time, then no further testing of any sort is needed since you cannot get HIV from someone who is not infected and negative tests will assure that this is the case (there is a miniscule chance that one of you could be in the process of developing a positive test but to be honest, this is so rare as to not be a concern).
If you cannot get your partner tested at this time, then testing is appropriate, despite the fact that this was likely a low risk exposure. PCR testing is expensive and not recommended as it has a fair number of false positive results. Rather, the quickest way to be sure that you do not have HIV is with a "DUO" test which tests for both p24 antigen and HIV antibody at the same time. A negative result on one of these tests 24 hours after exposure is definitive.
Hope these comments are helpful. EWH
Also - I plan on testing but I don't really understand when/which ones to take. Should I just wait until about 4 weeks out and start taking rapid tests every few wks until I hit 3 months out? What do you think of the nucleic tests that are supposed to be able to detect infection sooner after transmission? Are they worth the investment and where would I go to get these?