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Treponema pallidum Antibody (FTA-ABS), Serum : 4112
Test CodeTPIGG or 4112
Alias/See Also
Fluorescent Treponemal Antibody, FTA, FTA Serum, Syphilis Confirmation Test, TPA SUB, Treponemal Antibody Fluorescent FTA
CPT Codes
86780
Instructions
Serum separator tube.
Transport Container
Centrifuge serum separator tube and transport, 1 mL serum (Min: 0.2 mL).
Transport Temperature
Refrigerated.
Specimen Stability
After separation from cells: Ambient: 7 days; Refrigerated: 14 days; Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis. Gross lipemia.
Methodology
Immunofluorescent Assay (IFA)
Setup Schedule
Tuesday - Saturday
Report Available
1-3 days (From receipt at performing laboratory)
Reference Range
Nonreactive.
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.
Performing Laboratory
Quest Diagnostics
