Q. What HIV test should I go for if my suspected exposure was 45 days ago?
Hello doctor,
What is the window period for HIV western blot test from the date of a suspected exposure? And, what is the accuracy of the test?
Hello,
Welcome to icliniq.com.
- Western blot is a confirmatory test for HIV (human immunodeficiency virus), not a primary one
- It is highly sensitive and specific. It comes positive in six to eight weeks of exposure.
Regards.
For more information consult an HIV AIDS specialist online --> https://icliniq.com./ask-a-doctor-online/HIV-AIDS-specialist
Thank you doctor,
My last suspected exposure was 45 days back. Now, which test shall I go for to ensure that I am not infected?
Hello,
Welcome back to icliniq.com.
- Get a fourth generation ELISA (enzyme-linked immunosorbent assay) test done for HIV 1 and 2 as it has been six weeks after the exposure.
- Repeat it after three months of exposure pertaining to the fact that you have no exposure in between.
- If both are negative, you need not worry. Do send us the reports for evaluation.
Take care.
For more information consult an HIV AIDS specialist online --> https://icliniq.com./ask-a-doctor-online/HIV-AIDS-specialist
Thank you doctor,
Three months is a long time to wait. Are there any other tests for an early confirmation? I have done a blood test 45 days back which was a home sample collection. I have some fear and anxiety whether they used a new syringe needle or an old one. That is the reason I am planning to get this test done.
Hello,
Welcome back to icliniq.com.
Even small laboratories maintain basic standards these days. So, do not worry too much.
- ELISA is done at six weeks and three months after exposure because a very small number of patients do not develop antibodies by six weeks.
- The fourth generation tests detect both antigen and antibodies. The repeat test at third month is just to be sure.
- RNA PCR (polymerase chain reaction) is a test which is the first to be positive within days of the exposure.
Regards.
For more information consult an HIV AIDS specialist online --> https://icliniq.com./ask-a-doctor-online/HIV-AIDS-specialist
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