Doctor insights on:
Polymerase chain reaction is a method of finding a specific piece of dna and copying it over and over again until there is enough to study. The technique allows a scientist to detect very small amounts of dna in a swab sample then reproduce enough of it to study it. It is very sensisitive for detecting the presence of certain bacteria and is also used in doing other ...Read more
Is hiv-1-pcr quantitative and HIV RNA PCR quantitative same tests?can DNA PCR test be quantitative?
HCV: Nowadays with polymerase chain reaction technology it is making "window" periods a less discussed issue. In my practice if I suspected a recent infection (say days to weeks old)..this test would show virons in your blood. Once this virus hits your bloodstream it explodes exponentially. Some people are fortunate that their bodies contain the infection..most do not. ...Read more
6 week HIV RNA negative. Anti-hcv negative <0.1 8 week HIV negative < HCV PCR negative. 10 week HIV negative HCV 0.2 negative. ? Remain negative?
Likely yes: I think your in the clear for hep c. While its great that your negative HIV RNA pcr the typical protocol is time 0, 3 and 6 months after that. Now having said that...I have a large primarily HIV practice in south florida and its rare in my opinion not to have seroconverted and developed high titres of HIV virus at this point. But you still need further follow up. ...Read more
Hiv ab,1/2, eia with relx result repeatedly reactive. HIV 1/2ab differentiation w/refl hiv1 antibody negative hiv2 antibody negative. pos or neg hiv?
It depends: In a situation like this you have one positive test and one negative test. The lab should run a tie-breaker test (HIV RNA) to give you a real answer. Also, the first test may be an older test 2nd or 3rd generation) instead of the latest 4th generation) test. It also depends on if you have flu-Like symptoms. Seek help from a specialist in HIV who can help you understand. ...Read more
Yes, but...: ...this is your 3rd or 4th question because of worry about HIV in what (from another question) was an obviously low risk exposure. You appear to be irrationally concerned, and having trouble believing or accepting repeated reassurance. There's no point in repeated questions; the answers won't change. Consider counseling; I suggest it from compassion, not criticism. Good luck and stay safe. ...Read moreSee 1 more doctor answer
Advia hep.C antibody +, HCV RNA -. 3 months later Architect hep C Ab -, HCV RNA -. 2 Hep C Ab Verification tests -.Is Advia hepC Ab test false positiv
Without more info: and only the data you submitted in your question, I would put it together the way you did: the first Advia hepC Ab test was a false positive. I presume other experts who arranged your follow-up testing have suggested the same interpretation. Stay well:) ...Read more
No: no effect on testing.Get a more detailed answer ›
HIV testing: Yes. Of course it is. That is as long as you have allowed enough time to past for your body to produce antibodies against the HIV if you are infected. If you are not infected then if you only test with the HIV antibody test, you must wait six months after exposure for it to be fully reliable and accurate if you test negative. The situation in reality is that no one need wait that long ...Read moreSee 1 more doctor answer
Testing for Viruses: Yes. Of course. But, it does matter the timing of the tests and the length of time since the possible infectious exposure. ...Read more
No: If positive, it will be followed up with a confirmatory test. If negative, you are almost certainly okay but if you are very worried you might be able to pay for a pcr assay, which is the gold standard. ...Read more
Hiv infection is caused by a retrovirus....This retrovirus binds to CD4 cells (for the most part). You may detect the virus by several different methods. An elisa test (enzyme linked immunosorbent assay). You may also detect it by doing a test referred to as a western blot (a gel protein electrophoresis). Thirdly by pcr (polymerase chain reaction) which ...Read more
Human immunodeficiency virus (HIV) is a lentivirus (a member of the retrovirus family) that causes acquired immunodeficiency syndrome (aids),  a condition in humans in which progressive failure of the immune system allows life-threatening opportunistic infections ...Read more