HIV Testing/Screening Options
source :
http://www.sgstdclinic.com/sg-hiv-screening
Less than 3 days or 72 hours - no testing is available at this stage.
You may wish to consider HIV Post Exposure Prophylaxis (PEP) if you have had a high risk exposure, i.e. unprotected sex with a commercial sex worker or high risk contact, or needlestick injury from a IV drug abuser. HIV PEP was shown to be >80% effective in reducing risk of HIV infection. In animal studies, it was shown that the earlier (<48 hrs) PEP is started, the more effective it is, with prevention rates reaching 100%.
10 - 14 days HIV RNA/DNA Polymerase Chain Reaction (PCR) Test.. result in 2 weeks
21 - 28 days(3 - 4 weeks) HIV 1.Combination P24 Antigen/Antibody Test (HIV Duo Test) test is for HIV 1 only
2.Rapid Fingerprick Blood HIV-1/2 P24 Antigen/Antibody Combo (HIV Duo Test)
More than 28 days(> 4 weeks)HIV Antibody Test (ELISA) Results are 90% accurate at 1 month post exposure
Results are >99% accurate at 3 months post exposure
More than 28 days (> 4 weeks) Rapid Oral Saliva HIV-1/2 Antibody Test (Oraquick)or Rapid Fingerprick Blood HIV-1/2 Antibody Test (Determine) - both can get result in 20 mins. Results are 90% accurate at 1 month post exposure Results are >99% accurate at 3 months post exposure