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How Accurate Is The HIV RNA Test 45 Days Post Exposure?
Question: What is accuracy for a HIV negative result of a HIV RNA test after 45 days of exposure?
Brief Answer:
Its sensitivity is 99.89%. But a retest advised.
Detailed Answer:
Hi
Thanks for your query at HCM.
I understand your concern and situation.
The window period for the PCR DNA test is 2-3 weeks of exposure. So this test can be taken between 2-3weeks after sexual encounter. A confirmatory test may be taken only if your PCR DNA test result is positive. If it comes back negative, you may re-test at the 3 month mark for conclusive results. In your case 45 days have passed at this stage the accuracy is 99.89%. International guidelines state that an HIV test is considered definite and conclusive when taken 3 months after an exposure. Therefore I suggest that you must again get an HIV 4 th generation ELISA test after12 weeks which is 99.9% sensitive. But you will again need to take a test at 6 months to rule out any possibility of HIV infection.
Hope I answered your query
If no clarification then you can close the discussion and rate the answer. A review will be appreciated.
Dr Sheetal Verma
Its sensitivity is 99.89%. But a retest advised.
Detailed Answer:
Hi
Thanks for your query at HCM.
I understand your concern and situation.
The window period for the PCR DNA test is 2-3 weeks of exposure. So this test can be taken between 2-3weeks after sexual encounter. A confirmatory test may be taken only if your PCR DNA test result is positive. If it comes back negative, you may re-test at the 3 month mark for conclusive results. In your case 45 days have passed at this stage the accuracy is 99.89%. International guidelines state that an HIV test is considered definite and conclusive when taken 3 months after an exposure. Therefore I suggest that you must again get an HIV 4 th generation ELISA test after12 weeks which is 99.9% sensitive. But you will again need to take a test at 6 months to rule out any possibility of HIV infection.
Hope I answered your query
If no clarification then you can close the discussion and rate the answer. A review will be appreciated.
Dr Sheetal Verma
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