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A member asked:
Can the prozone effect occur in the rapid test for syphilis?, i got a rapid negative 1 month, vdrl tpha negative 3months more, but in my country the standard for a conclusive syphilis test is 6 months? is rapid in 6m safe from prozone effect?
A doctor has provided 1 answer
I assume you mean VDRL screening test 'rapid test.' Prozone phenomenon is known to affect nontreponemal tests (RPR and VDRL screening test) only. Since you had negative VDRL & TPHA at 3 months after exposure, you are cleared not to have syphilis!
Answered 10/22/2022
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Related Questions
A member asked:
Can you have secondary syphilis rash on only one hand? And if it was secondary syphilis will you have a false neg with VDRL& TPHA tests done together?
A doctor has provided 1 answer
A member asked:
Had sex 13May, 20 day after i eat 2pills azithromycin x 500mg , if i get syphilis on 13 May will 2pills of AZ cure syphilis?, i had TPHA & VDRL test on 3,5 months the result is negative, if i get syphilis on 13 May and cure by AZ will TPHA result +?
2 doctors weighed in across 2 answers
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