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Test Code RPR RPR, qualitative, LAB494

Important Note

RPR testing is a non-treponemal assay that is synonymous with the VDRL assay.  This assay is automatically reflexed to a titer, if positive.  This test is also to be used to follow therapy of a patient being treated for syphilis. 

Performing Laboratory

St. Luke's Hospital Laboratory

Specimen Requirements

Container/tube:

Preferred:  Gold SST or red top serum -  may be stored for up to 5 days at 2-8C

Acceptable:  Purple top (EDTA) or green top (heparin) plasma - may be stored for up to 48 hours at 2-8C

Specimen volume:  1 mL

 

Note:  Specimens with gross lipemia or hemolysis will be rejected.

 

 

Reference Values

Negative

If positive, a titer will be done automatically. 

The first positive sample will be sent for confirmation with a treponemal assay - See TPPA.

Day(s) Test Set Up

Monday through Friday

Methodology

Agglutination

Test Classification and CPT Coding

86592 - Screen

86593 - Titer

86780 - TPPA confirmation