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FTA-ABS Treponemal pallidum, Fluorescent Treponemal Antigen, Syphilis

 
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Description
 

CPT Code(s)

86780

Methodology

Immunofluorescent Assay (IFA)

Reference Range(s)

Non-Reactive

Clinical Significance

The FTA-ABS is a specific treponemal assay to detect antibody to t. Pallidum. The FTA-ABS becomes reactive 4-6 weeks after infection. Unlike the nontreponemal tests, once the FTA-ABS test becomes reactive, it will remain reactive for many years. Since the reactivity found with the FTA-ABS does not indicate response to therapy, it is not suitable for monitoring treatment. The FTA-ABS test does not distinguish between syphillis and other treponematoses such as yaws, pinta and bejil.

Alternative Name(s)

Treponemal pallidum, Fluorescent Treponemal Antigen, Syphilis


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