A member asked:

Positive hiv screener from blood donation, letter said most likely false positive. followed up w/ hiv screen 4th generation wrfx and that was negative for the virus & antibodies. do i need more testing? donation was 1y after last sexual encounter?

A doctor has provided 1 answer
Dr. Hiep Le answered

Specializes in Nephrology and Dialysis

You should be fine. The 4th generation HIV test has very high sensitivity, almost 100%, it only missed 0.3%, i.e. it misses 3 out of 1,000 tests. Please note that no medical test has 100% sensitivity.

Answered 1/21/2022

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