[Question #3465] Hiv test

35 months ago
Hello, despite Dr. Hook's excellent explanation in my last question on the forum, my anxiety made me take the HIV test. I did the fourth generation test with 23 days and two hours in the best laboratory in the country. I know the correct thing would be to wait 4 weeks, but as I go on vacation today I wanted a little more peace of mind. Could you tell me how reliable the test is with this time? I would like to add that I did not feel any symptoms in the period.
35 months ago
I forgot to say the result was negative. The value was 0.17 and to be positive it should be greater than 1.0.
Edward W. Hook M.D.
Edward W. Hook M.D.
35 months ago
Welcome back to the Forum although I'm sorry you continue to be anxious about the exposure we discussed earlier.  Your test results serve to strengthen the fact that you did not acquire HIV from the no risk events that you described but are not conclusive.  At 28 days combination HIV antigen/antibody tests detect about 99% of recent infections and at 6 weeks they are completely conclusive.  At 23 days it is safe to assume that you test would have detected over 90% of recent infections.  In your case however, following what is a no risk exposure, I would urge you to take these results as further validation of what you were told earlier- there was no risk for HIV from the events you describe.  I hope you can use these further test results to set aside your anxiety and move forward without concern.  You really do not need further testing.  EWH
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35 months ago
Thank you for your reply and for your patience. One last question, do you know if Clonazepam can interfere with the result? I was taking the medication to control my anxiety and I probably took a dose about 10 hours before the test. thank you.
Edward W. Hook M.D.
Edward W. Hook M.D.
35 months ago
No, clonazapam would have no effect on the accuracy of your test results.   You really need to except that you do not have HIV and move forward without concern  EWH---
34 months ago
Hi doctor, I'm doing my best to control my anxiety and move on without worry. however today I realized that my test did not use the ELISA method but the CMIA. the test is fourth generation (ag / ab). the ELISA and CMIA methods have any differences in relation to the immunological window? Thank you!
Edward W. Hook M.D.
Edward W. Hook M.D.
34 months ago
There is no meaningful difference between the accuracy or performance if HIV antigen/antibody detection tests using ELISA and CMIA methods.  I urge you to believe your test results.

This is my 3rd and final response to this thread.  As per guidelines, this thread will be closed shortly.  In addition, further repetitive anxiety-driven questions may be loved without an answer and without return of your posting fee.  EWH
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34 months ago
Hello! Can I order 1 more question about the index value of the tests? Or it will be considered a repetitive question?
Edward W. Hook M.D.
Edward W. Hook M.D.
34 months ago
No matter what the index value was, if the test was negative and should be believed.  Really  EWH
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