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| 88990:TREPONEMA PALLIDUM (MHA-TP) | |||||||||
| Alias Names: | Treponema pallidum Antibody by TP-PA / STD | ||||||||
| Methodology: | Indirect Hemagglutination | ||||||||
| Edit Date: | 1/20/2010 | ||||||||
| Performed: | Monday-Friday | ||||||||
| Released: | 1-4 days after setup at PeaceHealth Laboratories’ reference lab | ||||||||
| CPT Code: | 86780-90 | ||||||||
| Specimen Collection Details | |||||||||
| Collection: | One 7.5 mL serum separator tube (SST). Also acceptable: One 4.5 light green tube (PST) lithium heparin. | ||||||||
| Handling: | Centrifuge and immediately separate serum or plasma into a plastic vial. | ||||||||
| Stability: | 48 hours ambient, 14 days refrigerated, or 1 year frozen. Do not allow to thaw. | ||||||||
| Standard Volume: | 1 mL serum or plasma | ||||||||
| Minimum Volume: | 0.5 mL serum or plasma | ||||||||
| Transport: | Refrigerated. | ||||||||
| Comments: | TP-PA is a helpful diagnostic aid for the patient with a reactive reagin test, but presents with atypical signs of primary, secondary, or late syphilis. TP-PA compares favorably with the FTA test, but appears slightly less sensitive in cases of untreated early primary syphilis. In late syphilis, the agreement with FTA is 99%.
VDRL is the preferred test for cerebrospinal fluid. Treponemal tests (TP-PA or FTA) are not recommended for CSF. FTAs on CSF may be tested, but TP-PA cannot be tested on CSF. |
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| Rejection Criteria: | CSF or other body fluids; specimen thawed and refrozen. | ||||||||