Aug 1, 2017




Clinical Hub,Tools & Resources,UWHC Lab Test Directory,KITS

RPR, Confirm if positive

RPR, Confirm if positive (RPRFTA) KITS Lab Test

Name: RPR, Confirm if positive

Test Name: RPR, Confirm if positive

Health Link Test Code: RPRFTA

LIS Test Code: RPR

CPT Code(s): 86592

Methodology: Flocculation

Clinical Information:

Nontreponemal screening test for syphilis. This test should be requested for initial diagnosis of syphilis. For post-treatment follow-up testing where confirmatory testing is not required, please order "RPR, No Confirmation".

Days Performed: Mon-Fri.

In-Lab Turnaround Time: 1 - 3 days.

Specimen: Blood

Collection Container: Red top

Collection Volume: 1 mL

Pediatric Collection Volume: 1 mL

Stability Ambient:

Remove from cells immediately

Stability Refridgerated:

5 days

Stability Frozen:

1 year

Sample Analyzed: Serum

Testing Volume: 0.5 mL

Pediatric Testing Volume: 0.3 mL

Specimen Processing:

Centrifuge immediately. Transfer cell-free serum to plastic vial. Refrigerate.

Specimen Transport:

Transport specimen to Laboratory as soon as possible. Transport with coolant pack if coming from clinic location.



Interpretation Type: Expected Results

Additional Information:

Reactive samples are forwarded an approved reference laboratory for confirmation by TP-PA.


This method is approved for diagnostic testing only.  It is not approved for screening tissue donors that fall under FDA's HCT/P requirements.


False negative results may occur due to failure to recognize prozone reactions which can occur in 1% to 2% of patients with secondary syphils.  Please call and request to check for prozone if suspected.