Blood rapid HIV test

[paronied1971]

Dear Doctor,
thank you in advance for your helping.
I have tested negative for hiv after 8 weeks and after 20 weeks from my last exposure using 3rd generation rapid hiv blood test, i knew that it is conclusive after 12 weeks but my question is do i need to do a standard HIV test (ELISA) or not? and can i consider this test enough and conclusive? my exposure was receiving oral sex from an escort and i did not know her status.
and my last question ,is the 3rd generation blood rapid hiv test conclusive after 20 weeks regardless the kind of the exposures?

Thanks

[Edward W Hook, MD]

I'll take you at your word- this will be my final answer.  With two negative test results you have no reason to worry further about the possiblity of HIV from the exposure you refer to.  It is past time for you to stop worrying and move forward.  EWH

[paronied1971]

the last question regarding this topic, in my search i found out that some times in rarely basis the rapid HIV blood test  may be got a false positive result but not a false negative result if the test done after a suficient time as you mentioned above, am correct? in other word the problem of this kind of test in the false positive only.

Thank you for your time and i promise you this is the last question.

[Edward W Hook, MD]

Yes, you have just repeated my answer regarding the rapid HIV blood test accurately. EWH

[paronied1971]

Thank you doctor for your reply, to make my concern clear and close this thinking, as i understood from your reply that the rapid hiv test do the same as standard ELISA test (accuracy) , and it is conclusive after 8 weeks from any exposure regardless the risk of the exposure such as unprotected vagaional sex...elc?

Thanks a lot

[Edward W Hook, MD]

Welcome to our Forum. You do not need further testing for HIV related to the exposure you describe.  There are no cases in which anyone has ever been proven to acquire HIV from receiving oral sex.  Your tests prove the you are not the first.  After 8 weeks rapid blood tests are definitive regardless of the type of exposure (including 3rd generation tests) and therefore both your 8 and your 20 week test results prove you do not have HIV.  

there is no reason for further concern and no reason for further testing related to the exposure you describe.  EWH