confused about testing
Oct 16, 2008
Dr Bob, After getting a positive rapid test followed by negative WB 3 weeks after a possible exposure I had another positive rapid test at 4 weeks. Then on your advice I went to university health clinic here, where the doctor ordered antibody test from labcorp which was done at week 5 and was thankfully negative. Labcorp doesnt use Elisa any more but some thing called IMFA (negative at week 5). I had flu like symptoms at day 10 after exposure and negative DNA PCR at 11th day after exposure. I dont now how a rapid test can be more sensitive than the expensive labcorp antibodies testing. I know I need to test after the window period but do I have any chances? Thanks,
Response from Dr. Frascino
Your test results to date are extremely encouraging. Please note that a positive rapid test followed by a negative Western Blot is considered to be a negative HIV test! In addition, you've had a negative IMFA and undetectable DNA PCR qualitative test. The odds are astronomically in your favor that you are HIV negative. You can read more about the various types of HIV-diagnostic tests in the archives.
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