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A member asked:
Is the syphilis rapid test from veda lab after 9 weeks worth anything. since it only test for antibodies. when is a syp. antibody test conclusive? i also tested for neg. for hiv ab/ag 30 & 52 days after possible exposure? also hbsag / ab at 30 days?
A doctor has provided 1 answer
All syphilis blood tests are for antibody. (Unlike HIV and certain other infections, there is no antigen or DNA/RNA blood test for syphilis.) The exact time to conclusive syphilis rapid antibody tests for syphilis are uncertain; 9 wk probably is conclusive, but play it safe and test again after 3 months. Your HIV AgAb test at 52 days is 100% conclusive; you do not have HIV. Same for hepatitis B.
Answered 2/13/2023
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