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A member asked:

At how many days after pep.is 4th gen test is conclusive ..bcoz i have tested with 4th gen test after 135days of last pep dose. is this is a conclusive report . or i need to retest.? i got herbes zoster after at 80th day after pep?

A doctor has provided 1 answer
Dr. Hunter Handsfield answered

Specializes in Infectious Disease

Most experts agree the HIV AgAb ("4th generation") blood tests are conclusive 6 weeks after the last dose of PEP, although a few might recommend 3 months. For sure your negative result at 135 days is conclusive; you don't have HIV. Herpes zoster (shingles) is common in people without HIV and rarely is a clue about HIV infection.

Answered 5/5/2023

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Related Questions

A member asked:

If we exposed to hiv and take pep after one month of exposure.did antigen antibodies test be delayed for four months..i had tested with 4th gen test after four and half months after last course of pep.is this conclusive or delayed seroconverion?

A doctor has provided 1 answer

A member asked:

I had an HIV antibody/antigen (ag/ab) test 45 days after my last dose of PEP and I tested negative. Is this result conclusive? Is it a true negative? Some say 3 months but that most people, if theyre positive, will test positive at 6 weeks?

A doctor has provided 1 answer

A member asked:

Hello doc, after the last dose of PEP when is a 4th generation combo test conclusive? what is the window period after the last dose of PEP?

A doctor has provided 1 answer

A member asked:

If unsuccessful, how long after PEP will seroconversion be delayed? and when can i take a final 4th generation combo test for it to be conclusive? Would an HIV Viral Load test be conclusive 4 weeks after last dose of PEP?

A doctor has provided 1 answer

A member asked:

I had a risky exposure 116 days ago, i took pep for 28 days, i tested with 4th gen test after46 day post pep/76 post exposure, another 4th gen test, 86 days post pep/116 days post exposure, both test non reactive, are these test conclusive ?

4 doctors weighed in across 2 answers

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