Syphilis-Routine RPR with Reflex to Anti-Treponemal Antibody

Brief Description

CDC recommendations are that all non-treponemal test be confirmed by a treponemal assay (traditional algorithm). Specimens will be screened by an RPR test that uses charcoal agglutination for detection of reagin antibodies and reflex all positive samples to a treponemal assay for confirmation.

Laboratory Unit

Immunology GPHL

Serology WPHL

Methodology

RPR charcoal agglutination

Chemiluminescence Immunoassay

Specimen Collection

Serum:

Collect in gold top SST tube, centrifuge.

Collect in tiger top SST tube, centrifuge.

Storage/Transport

Serum separated from the clot can be maintained at refrigerated temperature (2-8°C) during transit for no more than five days after collection. 

Serum separated from the clot can be aliquoted, stored frozen (-20°C or colder) and shipped with dry ice.

Acceptable Specimen Type(s)

Serum

Test Request

Possible Results

  • Reactive
  • Non-reactive
  • Unsatisfactory

Reference Range

Non-reactive

Unacceptable Conditions

  • Plasma Specimens
  • Missing testing requisition 
  • Missing minimum of 2 patient identifiers
  • Improper labeling
  • Improper storage/transport of specimen
  • No specimen received (empty collection tube).
  • Wrong specimen type
  • Specimen damaged, broken, or leaking upon arrival
  • Grossly hemolyzed or lipemic
  • Specimen containing microbial contamination
  • Received more than 5 Days after collection

Interfering Substances

Hemolysis, lipemia, and bacterial contamination

Result Reported

5-7 business days

Fees

Download this pdf file. Fee schedule

LOINC/Order Codes

20507-0 (Order code:1610 Decatur, W20000 Waycross)