A member asked:

How accurate for 3 week blood test on hiv and std? if positive or negative isn't it 100%? do i need to test anymore? still waiting for results

A doctor has provided 1 answer

Let me explain: Standard antibody HIV testing can have two stages. The most commonly used initial screening test is either an enzyme immune assay (eia) or the enzyme-linked immunosorbent assay (elisa). If the eia/elisa test is negative, no additional testing is done. If the eia/elisa screening test is positive, that result must be confirmed with a more specific test called "western blot.".

Answered 3/17/2023

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