[Question #3878] oralquick

34 months ago

Hi Dr. Hook. I wanted to clarify, 2 months ago I asked about reliability of oralquick after 8 month and the answer was as good as any blood test but reading the forum now it appears the perception changed. I did oralquick twice at 8 months and twice after 11, can I trus them. Because now I am reading the 1 for every 12 is a false negative.

thanks
Edward W. Hook M.D.
Edward W. Hook M.D.
34 months ago

The Oraquick has never been our favorite test.  After 12 weeks the accuracy of the Oraquick test is slightly less than other laboratory based tests.  In the largest studies the Oraquick misses up to 1 in 12 infections while other, lab based antibody only tests missed about 1 in 20.  HOWEVER, when considering your likelihood of infection, remember that your likelihood of having HIV is determined by much more than the test performance.  Factors besides test performance include:

1.  The likelihood that your partner had HIV (certainly less than 10%)

2.  The chance of infection IF the  encounter genital and was unprotected (about 1 in 1000-2000)

3.  Your multiple negative tests.

 

If you cannot still believe your test results so far, I suggest you stop testing with OraQuick and get a 4th generation, combination /HIV antigen/antibody tests which is the most accurate test available.  I am confident it will be negative.  EWH


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34 months ago
Thanks dr hook, i took the last test 12 month after (1yr) even there can it miss 1 out of 12? 
Thanks
34 months ago
My question is, knowing it was mutual masturbation 12 months ago, it is enough to forget about it? My las test was at 12 months post
Edward W. Hook M.D.
Edward W. Hook M.D.
34 months ago
Yes, mutual masturbation is a no risk activity.  I really would not have recommended testing.  Please do not worry.  I urge you to put this behind you and move on without concern.  EWH
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34 months ago
Thanks doc, and sorry one last question, given i dis 4 different pralquock, does it mean that probability goes down? And given i did it at 12 months, antibodies must have been there in the case pf a  virus? 
I just wanted to know if the farest away from exposure and the more repetitive tests the probability of a false negative decreases?
Edward W. Hook M.D.
Edward W. Hook M.D.
34 months ago
Your question is not clear, particularly the phrase " i dis 4 different pralquock".  Please clarify since this will be my last response to your questions and since no further questions from you on this exposure will be accepted on the Forum.  EWH
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34 months ago
My question is, that if  i took 4 different oralquock that percentage of falce negatives go down and if i took 2 of them afrer 11 months is a good indicator i took them far enough from the expose?
Thanks
Edward W. Hook M.D.
Edward W. Hook M.D.
34 months ago
Yes on both cases.  doing more of the same test and getting the same result does mean that the result is likely to be true.  Further, with HIV tests, the larger the time interval between your exposure and the time of testing, the more likely the result is to be true.

This ends this thread.  As I mentioned above, if you post again about this encounter, it is likely that he thread will be closed without an answer and without return of your funds.  You need to move on.  Be confident, you were not at risk and your rests prove that you were not infected.  EWH
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