A member asked:

Worried about hiv infection. i got a 4th generation rapid test exactly one month after possible exposure. it was clean. is this conclusive?

A doctor has provided 1 answer
Dr. Hunter Handsfield answered

Specializes in Infectious Disease

Highly reassuring...: ...but maybe not conclusive. The lab-based 4th generation ("combo") HIV tests are 100% conclusive at 4+ weeks, but less confidence about the rapid version, because it's newer and rapids are inherently a bit less reliable. Your negative is over 95% reliable. But if your exposure was especially high risk (e.g. unprotected anal with male partner) have a lab based test, or repeat rapid at 2-3 months.

Answered 4/10/2018

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