Waiting period for sexually transmitted diseases or aids test results?

Which test? Rapid HIV screens are usually available in 24 hrs or less. The HIV antibody screen can be available in 24-48 hrs or less depending on the lab, but the more sophisticated confirmatory western blot may take longer. The PCR for detection of viral nucleic acid may take some time, but a great deal of the delay depends on the laboratoryr expertise and the number of specimens they receive & frequency.