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RPR Rflx to Titer, FTA-ABS (Quest)
Test CodeRPRQ
Quest Code
36126
CPT Codes
86592
Includes
If RPR screen is Reactive, then RPR Titer and Chemiluminescence - Treponemal Antibody Immunoassay for Confirmatory testing will be performed at an additional charge (CPT Code(s): 86593, 86780).
Preferred Specimen
3 mL serum
Minimum Volume
1 mL
Transport Container
Plastic screw-cap vial
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 4 days
Refrigerated: 7 days
Frozen: 30 days
Refrigerated: 7 days
Frozen: 30 days
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
Hemolysis • Lipemia
Methodology
Flocculation • Immunoassay (IA)
Setup Schedule
Set up: Mon, Wed-Sat; Report available: 1-3 days
Limitations
False-positive results have been associated in patients with infections, pregnancy, autoimmune disease, old age, Gaucher disease, and malignancy.
Reference Range
Non-Reactive
Clinical Significance
This is a non-treponemal screening test for syphilis. False positive results may occur due to systemic lupus erythematosus, leprosy, brucellosis, atypical pneumonia, typhus, yaws, pinta, or pregnancy. Monitoring of RPR is helpful in assessing effectiveness of therapy.
Performing Laboratory
Quest Diagnostics Nichols Institute
14225 Newbrook Drive
Chantilly, VA 20153