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Elisa test biology

Common Questions and Answers about Elisa test biology

elisa-test

Avatar n tn I know how the test works (definitely one situation where being a biology major comes in handy), but I was wondering how accurate it is. Does anyone know what the rate of false positives is? Is a negative test result conclusive, or should I follow it up with an ELISA? Thanks for the information. Hopefully it comes back negative!
Avatar m tn I knew little about the various testing methods at the time I took my test, so the only reason the WB test was ordered without an ELISA was because I specifically asked my GP for it. Having actually done some research since, I understand that WB tests are almost always used as confirmatory tests following a positive ELISA. Regardless, I was wondering if I could consider this test definitive, as it was taken 8 weeks following my potential exposure.
Avatar n tn Your multiple negative HIV tests prove without doubt that you were not infected with HIV last June. For all practical purposes, it is not possible to catch HIV and have a negagive ELISA test after 21 weeks. Your blood count results and symptoms, axillary nodes or anything else, are irrelevant. You don't have HIV. If you are convinced your axillary lymph nodes are inflamed, see a provider to confirm it and learn the cause. It isn't HIV.
Avatar m tn Negative is negative (but note you need to test again at 12 wks for a conclusive result). Biology is not an exact science. Antibodies are not 100% specific and hence there's some degree of reaction to HIV antigens even in people who don't have HIV. This is also the reason why some people who are negative may actually test positive, requiring other tests to be used.
Avatar f tn Hiye, this may seem a silly question but is the Elisa test that is used for HIV the same as the Elisa test used for rheumatoid arthritis?.. Is the Elisa just a standard antibody test that is not disease specific and if reactive then a specific test is used?..
Avatar f tn my doctor is said to me to give pcr-rt (quantitative) test? what is pcr? I am very worried.
Avatar m tn i have got an elisa test done for hiv 3 years after exposure. my test confirmed that i was negative. do i need to get retested or can i be assured that i am hiv negative. and yeah thanks for answering my previous questions, it helped me a great deal. you all are doing a great job , thumbs up....
Avatar m tn There is a lot of new tests but elisa is just the type of test, there are 1st, 2nd, 3rd and 4th generation of elisas, and there continue to be a lot of research for new tests, the newest teste tend to be rapid test accurate as elsia tests, there has been also improvement also in the NAAT tests, and some labs are trying to come up with a new 5th generation rapid test (PCR+Antibody+p24) but is not ready yet.
Avatar f tn how accurate is a negative elisa test 3 weeks post risky exposure for a woman (unprotected sex) with a hiv positive man? my doctor says its 100% accurate, is this true....
Avatar m tn ve 30.50.60.70.80.86.92.115 elisa test. it necessary to obtain the test to be negative anymore, all the days of 6 months?
Avatar f tn My husband had positive elisa test with 3.45 value in august 2016 for hepatitis c. Then he got treatment aND it showed 0.85 value in January 2017. He got checked his hepatitis C by elisa test again two days back. It showed a value of 85.0. He's active n doing job. No cough or any other symptoms. He did it as just a routine checkup. Please guide if elisa test can be 85.0 ?? What should we do next? Much worried! !
Avatar n tn Dear Doc (and forum readers), About a week or so ago I needed to get a medical check for work. When I got my results back, I was shocked to be told that the Elisa test came back as HIV reactive at 1.52. They tested it twice. I really have no idea what that number stands for, though. I don't have sex. No girlfriend. And I don't sleep with street workers. As far as I can remember, I have not come into contact with blood (except when killing mosquitoes).
Avatar m tn hello, i had protected sex with an hiv positive girl (i just discovered), i had sex with her twice, but she gave me several oral sex, i saw some blood on my penis in one of them, from her mouth i think.. i have no symptoms untill now, i did Elisa test 52 days after 1st time and 20 days after last time and today it´s been 2 months since 1st time (the day i saw the blood) and 1 month after our last time.
Avatar m tn Hi i Just wanted to know how accurate is ELISA third generation tests is, my last sex was at 04/11/2010 i did the first test on 22/1/2011 the result wasELISA : HIV1&HIV2 NEGATIVE (0.15) i started to get worried of the number so i did a second test on 15/2/2011 just to make sure that i completed 3 monthes and the rsult came ELISA : HIV1&HIV2 NEGATIVE (0.33) i freeked out why that number is keeping rising !!
Avatar m tn with refer to no.1. it seems HIV antigen (for ELISA test) could withstand for long period after taken out from human body? In addition, may I know what should do and dont's before blood sampling for ELISA test for HIV? e.g. fasting, take medicine, smoking, sufficient sleep, no fever etc....
Avatar n tn elisa will detect antibody in blood as long the test was done after 3 month post exposure.. after 13 years??
Avatar n tn and work in lap said me thit is elisa method . and take another test after 6 months result test after 2 days in hospital ?// can elisa method take result in 30 min only ???? 3. any diffrent about first elisa gen and third gen?? the same window piriod after 6 months? 4. can antibdies late in 12 months ?? 5. can all elisa test to detect hiv1 and hiv2 and all group or strains in hiv1 im so sorry mt enghilsh poor ...
Avatar n tn Thank you very much for your help.But,I have a test Colloidal Gold 3rd generation from hospital only ,I didn't have an ELISA test. Is there any difference?