Chance Of False Negative Elisa

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Ask the Experts

Could my meds have caused false negative ELISA's?

Dr. Horwath,I keep seeing references to some antidepressants suppressing the immune system and HIV antibody production - this raises the question whether they can cause false negative HIV ELISA tests. I am on 20 mgs of Remeron per night, 10 mgs. of...
Ewald Horwath, M.D.

Response from Ewald Horwath, M.D.

University of Miami School of Medicine
...I have no reason to believe that these medications could cause a falsenegative on the ELISA test. The ELISA test is highly sensitive, and very unlikly to miss a true HIV antibody response. The main Read more »

Can an ELISA give a false negative if I've been infected for years?

I read somewhere that an ELISA test can give a false negative if the illness has progressed to the... Read more »
San Francisco AIDS Foundation

HIV Testing batches, so you may have to wait one to two weeks for results. Beyond the Window Period ELISA tests are very rarely "falsenegative." This means if you have a negative test result, and you had met the Window Period guidelines after the... Read more »
AIDS InfoNet

HIV Testing

...cannot tell you if you have HIV infection. The sample you collect must be tested by a laboratory. Some special cases can give false or unclear results: Children born to HIV-positive mothers may have false positive antibody test results for... Read more »
The Well Project

What Is HIV?

...anywhere from two to eight weeks to make antibodies. If you are tested in this "window period," you may get an unclear result or a falsenegative. There is another type of test called the RNA test, which detects the virus directly. The RNA test... Read more »
The Body's "Ask the Experts" Forums

FAQs About HIV Testing From's "Ask the Experts" Forums

...symptoms on the internet. HIV Testing Will my fever affect my HIV test results? Could my autoimmune disease cause a false positive HIV test result? Why can't a rapid HIV test be read past the 20-minute mark? Does alcohol affect... Read more »
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