SYPHILIS SEROLOGY TESTING

Components
Syphilis Antibody: Treponema Pallidum enzyme immunoassay screen for suspected primary or secondary syphilis.

Specimen Required
Draw blood in a SST. Centrifuge, separate and send 1.0 mL serum (0.5 mL minimum) refrigerated in a screw-capped plastic vial.

Alternate Specimen
Serum: Red-top

Rejection Criteria
Severely hemolyzed or lipemic specimens

Methodology
Chemiluminescent Immunoassay

Stability
Room Temperature: 8 hours; Refrigerated: 7 days; Frozen: 14 days

Reference Range
<0.9 - Negative: In a patient for whom there is a strong clinical suspicion of syphilis, a second sample collected in 14 days is recommended.
0.9-1.09 - Equivocal
>=1.10 - Positive: Reflexed for confirmation to TP-PA and a rapid plasma reagin titer (RPRT) that will be useful in following response to treatment.

Performed
Sunday-Friday

Turnaround Time3 days
Test CodeSYPH
CPT-4 Code (s)
86592. Positives reflexed to TP-PA (86780) and RPR Titer (86593) at additional fees.
LOINC Codes
63464-2

Warde
Medical
Laboratory