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A member asked:
The cdc has cryptic language when it comes to what day the 4th gen ag/ab lab test is conclusive. it says the 4th gen lab test should be taken after the window period which is 18 to 45 days. so should i take the test at 46 days? is it 100% conclusive?
2 doctors weighed in across 2 answers
At day 46th, the fourth generation HIV test is very accurate and reliable but you should know that there is no test in medicine is 100% conclusive which means false positive or false negative may still happen.
Answered 12/27/2021
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It is nearly conclusive but rare instances of variation can not be ruled out as pointed out by Dr. He. Visit this site for info: HIV test window periods https://www.cdc.gov/hiv/basics/hiv-testing/test-types.html
Answered 12/27/2021
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