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Treponema pallidum Antibody, IgG by IFA (CSF)
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Ordering Recommendation
For CSF specimens, Treponema pallidum (VDRL), Cerebrospinal Fluid with Reflex to Titer is preferred. May aid in the workup of neurosyphilis.
Mnemonic
Methodology
Semi-Quantitative Indirect Fluorescent Antibody
Performed
Sun-Sat
Reported
1-3 days
New York DOH Approval Status
Specimen Required
CSF.
Transfer 1 mL CSF to an ARUP Standard Transport Tube. (Min: 0.2 mL)
Refrigerated.
Serum. Contaminated, heat-inactivated, or hemolyzed specimens.
Ambient: 48 hours; Refrigerated: 5 days; Frozen: 1 year
Reference Interval
Nonreactive
Interpretive Data
The significance of a reactive result in the FTA-ABS CSF test is unknown. The CSF from persons treated in the secondary or latent stage of syphilis and without signs of neurosyphilis may be reactive. A nonreactive result in the FTA-ABS CSF test suggests the absence of neurosyphilis.
Treponema pallidum (VDRL), Cerebrospinal Fluid with Reflex to Titer (0050206) is the recommended test for CSF specimens. If suspicion of neurosyphilis remains after VDRL testing, testing of the CSF with FTA-ABS may be considered.
This test was developed and its performance characteristics determined by ARUP Laboratories. It has not been cleared or approved by the US Food and Drug Administration. This test was performed in a CLIA certified laboratory and is intended for clinical purposes.
Modified FDA
Note
Hotline History
CPT Codes
86780
Components
| Component Test Code* | Component Chart Name | LOINC |
|---|---|---|
| 0055273 | Fluorescent Treponema Antibody CSF | 9826-9 |
Aliases
- Fluorescent Treponemal Antibody
- T pallidum IgG CSF by IFA
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