A member asked:

I ordered lab test for std online. rpr 1:1 titer. then i went to my gyn to retest rpr and my gyn also do mha-tp, both negative. but i see many experts just talk about fta, tp-pa, eia. is mha-tp good test?

2 doctors weighed in across 2 answers
Dr. Hunter Handsfield answered

Specializes in Infectious Disease

You do not need any more syphilis testing; negative MHA-TP makes it 100% certain you don't have syphilis. Your RPR was what STD experts call biological false positive. BFP results are very common, up to 1-2% of all RPR tests, more often in women than men. In rare cases, it's a sign of an autoimmune problem but that's unlikely if you are generally healthy. For future tests, have EIA not RPR.

Answered 10/1/2023

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I was not aware that you could bet lab tests done without a doctors request. Tests are ordered as indicated by docs who then interpret them. Each test mentioned is good for its indication

Answered 10/4/2023

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