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it may not detect the virus ?

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February 19th, 2011
i have a doubt about the hiv pcr dna scan , if done after 11 days of potential exposure will it be accurate , and is a negative result conclusive ? i had peace of mind after taking the test ,and even my doctor told me theres nothing to worry about ,but after reading on google about the uncertainty of this test ,i have doubts again ...they say on early days of the scan it may not detect the virus as there may not be noticable amounts of the virus in the blood is this true ???


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replied February 20th, 2011
HIV and AIDS Answer A19833
Hello and thank you for posting your medical question on E health Forum.

The PCR -DNA test is a very accurate test for detecting HIV INFECTION. It detects the presence of the HIV DNA, in the blood. Hence its accuracy is 100%. There is no uncertainty regarding the test, all the negative comments about this test are incorrect.

The PCR-DNA test gives a positive result within 10-14 days after exposure. Hence it is used in detection of HIV in newborn babies at high risk, so that effective Anti retro viral therapy can be initiated ASAP.

Your test at 11 days is valid and conclusive of a negative HIV status.

You might consider to consult your doctor for additional counselling.

I hope this helps.



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