[Question #3646] Oralquick false negatives

34 months ago
I wanted to ask how frequent are false negatives on oral quick after 3 months? the reasons why? and is you can have 2 false negatives after 3 months?
H. Hunter Handsfield, MD
H. Hunter Handsfield, MD
34 months ago
Welcome back to the forum. Sorry you found it necessary, but I'm happy to address this additional question.

The oral fluids test misses a small proportion of HIV infections, even after 3 months -- probably around 1%. However, it is very unlikely that 2 negative results after 3 months would both be false. Assuming your risk of HIV was average, i.e. not particularly high risk, you can and should consider your results conclusive. But if the risk is especially high, or for particularly anxiious persons, it's better to have a lab based antigen-antibody (duo, 4th generation) blood test. You can expect a negative result, which will be 100% conclusive with no exceptions.

Let me know if anything isn't clear.

HHH, MD
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34 months ago
The risk was mutual masturbation 8 months ago, and i did 3 oralquicks, one of them did not waited the whole 30min after water and swabed more than instructed
H. Hunter Handsfield, MD
H. Hunter Handsfield, MD
34 months ago
There was no risk from that exposure. Period. Testing made no sense. As we discussed last time, not waiting after water rinse, and duration of scrubbing, makes no difference in test reliability.

But let's say I'm wrong, that there really was a small risk you caught, say 1 chance in a million. Then let's estimate a 1% chance all three of your oral fluids tests missed an actual HIV infection. That makes the chance you have HIV, after your first test result, 0.000001 x 0.01 = 0.00000001. That's one chance in a hundred million. And after 3 such tests, the chance you have HIV would be 1 in a trillion.

Suck it up and move on without worry!

Let me know if you have any last question. After this thread, you won't be permitted any more about this exposure, HIV testing, etc.
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34 months ago
Doctor i tested for a piece of mind, i am married and my wife had some lymph npdes in in the neck and ampit that we found on a regular mamography and i wanted to be sure she did not have anything related to my experience more than 8 months ago. And i wanted to know how reliable was the oralquick and the reason for false negatives.
But if you say i can move on without worrying i will. 
H. Hunter Handsfield, MD
H. Hunter Handsfield, MD
34 months ago
Indeed you can. You needn't be worried about this at all.

Please note the forum does not permit repeated questions on the same topic or exposure. This will have to be your last one; future new questions about this exposure and its risks or your concerns about HIV testing will not be answered and the posting fee will not be refunded. This policy is based on compassion, not criticism, and is designed to reduce temptations to keep paying for questions with obvious answers. In addition, experience shows that continued answers tend to prolong users' anxieties rather than reducing them. Finally, such questions have little educational value for other users, one of the forum's main purposes. Thanks for your understanding.



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