| A B C D E F G H I J K L M N O P Q R S T U V W X Y Z # |
Treponema Screen
MessagePerforming Lab: Park Nicollet
Test Code
LABS20157
Alias/See Also
Sunquest;TRPAB; RPR; EPIC; LABS20157;
CPT Codes
86593
Preferred Specimen
Serum from a serum separator tube or plain red tube
Minimum Volume
1.0 mL
Transport Temperature
Refrigerated
Specimen Stability
Refrigerated:7 Days
Ambient: 5 days
Frozen: 6 Months
Ambient: 5 days
Frozen: 6 Months
Methodology
Chemiluminescent immunoassay
Setup Schedule
Monday through Friday
Limitations
Unacceptable Specimens: CSF, Plasma, Body Fluid Specimens, Severly Lipemic, contaminated, or hemolyzed specimens
Clinical Significance
| Treponemal Result (TRPAB | Non-Treponemal Result (RPR) | Report/Interpretation for all except Neonates and infants |
| Negative | Non-Reactive | No serological evidence of infection with Treponemal pallidum (incubating or early primary syphillis cannot be excluded) |
| Negative | Reactive | Current infection unlikely; probability of biological false positives secondary to other medical conditions (febrile diseases, immunizations, IVDU, autoimmune diseases, etc) Recommend repeat testing (Non-treponemal and treponemal by other test methods) |
| Prelim | Non-Reactive | Probably past infection or potential cross reactivity with other spirochetes/related antigens; additional testing appropriate to clinical findings/history; possibility of false negative non-treponemal due to prozone or late syphilis or neurosyphilis. |
| Prelim | Reactive | Presumptive evidence of current infection (or inadequately treated infection, persisitent infection, reinfection, or biological false positive if prior history) additional testing consistent with clinical assesment |
| Not Done | Non-reactive | Current infection unlikely; effectively treated infection if previous diagnosis and treatment |
