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Is HIV Test Done After After 10 Weeks Conclusive?

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Posted on Tue, 10 Nov 2015
Question: Hi I am a memeber of the xxxxxxxxxxx in xxxxxxxxx and I recently took an HIV blood test after 2 days short of 10 week possible exposure. It was a one time incident and she claims shes not HIV+

Here are the test results that came back from Kaiser:
HIV 1+2 AB+HIV1P24 AG, CLA Nonreactive Nonreactive


My questions are :
The HIV tests administered and used by Kaiser Permanente are they 4th generation tests?
Secondly how accurate are the results after 2 days shy of 10 weeks? I just want to make sure the nonreactive result is a valid confirmation I do not have HIV
Also can I have an internal medicine possibly answer this question?

Thank you
doctor
Answered by Dr. Sheetal Verma (1 hour later)
Brief Answer:
Repeat the test after 12 weeks.

Detailed Answer:
Hi

Thanks for your query at the HCM.
I understand your concern and situation.

Firstly I would suggest you not to worry as your test results are negative. Yes the tests which detect both p24 and antibodies are 4 th generation ELISA test. Now I see that you have taken the test at 10 weeks and it is non reactive. But as per international norms 4 th generation ELISA test is considered to be conclusive after 12 weeks. So I would suggest you to get your test repeated after 12 weeks. It is most likely that it will be negative but the protocol must be followed. But would like to emphasize that the test done around10 weeks are also highly about 95% sensitive. It is most likely that it will be negative but the protocol must be followed. So get a repeat test at 12 weeks.


Hope I answered your query
Rating and review will be appreciated
Dr Sheetal Verma
Infectious diseases Specialist
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Above answer was peer-reviewed by : Dr. Chakravarthy Mazumdar
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Answered by
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Dr. Sheetal Verma

Infectious Diseases Specialist

Practicing since :2001

Answered : 635 Questions

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Is HIV Test Done After After 10 Weeks Conclusive?

Brief Answer: Repeat the test after 12 weeks. Detailed Answer: Hi Thanks for your query at the HCM. I understand your concern and situation. Firstly I would suggest you not to worry as your test results are negative. Yes the tests which detect both p24 and antibodies are 4 th generation ELISA test. Now I see that you have taken the test at 10 weeks and it is non reactive. But as per international norms 4 th generation ELISA test is considered to be conclusive after 12 weeks. So I would suggest you to get your test repeated after 12 weeks. It is most likely that it will be negative but the protocol must be followed. But would like to emphasize that the test done around10 weeks are also highly about 95% sensitive. It is most likely that it will be negative but the protocol must be followed. So get a repeat test at 12 weeks. Hope I answered your query Rating and review will be appreciated Dr Sheetal Verma Infectious diseases Specialist