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To view specimen requirements and codes please select your laboratory:

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Test Code


CPT Code(s)



If RPR screen is reactive, RPR Titer and Fluorescent Treponemal Antibody (FTA) Confirmatory testing will be performed at an additional charge (CPT code(s): 86593, 86780).

Preferred Specimen(s)

1 mL serum
Transport Container: Plastic screw-cap vial
Transport Temperature: Room temperature

Minimum Volume

0.2 mL

Specimen Stability

Room temperature: 4 Days
Refrigerated: 7 Days
Frozen: 30 Days



Setup Days

Set up Monday through Friday, nights;
results available 1 days after set up


False-positive results have been associated in patients with infections, pregnancy, autoimmune disease, old age, Gaucher disease, and malignancy.

Reference Range(s)


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.

LOINC®' Code(s)

The Result and LOINC information listed below should not be used for electronic interface maintenance with Quest Diagnostics. Please contact the Quest Diagnostics Connectivity Help Desk for more information at 800-697-9302.

NOTE: The codes listed in the table below are not orderable Test Codes.

Result NameLOINC CodeComponent Name
3701RPR SCREEN20507-0Reagin Ab

Reference ranges are provided as general guidance only. To interpret test results use the reference range in the laboratory report.

The CPT codes provided are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payer being billed.

LOINC assignment is based on a combination of test attributes, including the method used by the performing laboratory. For tests not performed by Quest Diagnostics, codes are assigned by the performing laboratory.

* The tests listed by specialist are a select group of tests offered. For a complete list of Quest Diagnostics tests, please refer to our Directory of Services.