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| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
TREPONEMA PALLIDUM ANTIBODY, IGG BY IFA (FTA-ABS), SERUM
Test CodeLAB1197
Preferred Specimen
1 mL serum
Minimum Volume
0.2 mL
Transport Container
Transport tube
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 7 days
Refrigerated: 14 days
Frozen: 30 days
Refrigerated: 14 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Gross hemolysis • Grossly lipemic
Methodology
Immunofluorescent Assay (IFA)
Setup Schedule
Mon-fri
Report Available
1-4 days
Clinical Significance
The FTA-ABS is a treponemal assay used to detect antibodies against Treponema pallidum. The FTA-ABS becomes reactive 4-6 weeks after infection. Unlike the nontreponemal (lipoidal antigen) 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 syphilis and other treponemal diseases such as yaws, pinta and bejel.
