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|88990:TREPONEMA PALLIDUM (MHA-TP)|
|Alias Names:||Treponema pallidum Antibody by TP-PA / STD|
|Released:||1-4 days after setup at PeaceHealth Laboratories’ reference lab|
|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|
|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.
|Rejection Criteria:||CSF or other body fluids; specimen thawed and refrozen.|