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Test Code RRPRS Rapid Plasma Reagin Screen with Reflex to Titer, Serum


Specimen Required


Only orderable as a reflex. For more information see SYPH1 / Syphilis IgG with Reflex, Enzyme Immunoassay, Serum

 

Container/Tube:

Preferred: Serum gel

Acceptable: Red top

Submission Container/Tube: Plastic vial

Specimen Volume: 0.5 mL

Collection Information: Centrifuge and aliquot serum into plastic vial.


Useful For

Aid for the diagnosis of infection with Treponema pallidum

 

Rapid plasma reagin testing following a positive treponemal antibody test

 

This test is not useful as a screening or confirmatory test for blood donor specimens.

Testing Algorithm

If the rapid plasma reagin (RPR) screen is positive, then the RPR titer will be performed at an additional charge.

 

If the RPR screen is negative, then syphilis antibody Treponema pallidum particle agglutination testing will be performed at an additional charge.

Special Instructions

Method Name

Only orderable as a reflex. For more information see Syphilis IgG with Reflex, Enzyme Immunoassay, Serum.

 

Flocculation/Agglutination

Reporting Name

RPR Screen w/ Reflex to Titer, S

Specimen Type

Serum

Specimen Minimum Volume

0.4 mL

Specimen Stability Information

Specimen Type Temperature Time Special Container
Serum Frozen 14 days

Reject Due To

No specimen should be rejected.

Reference Values

Only orderable as a reflex. For more information see Syphilis IgG with Reflex, Enzyme Immunoassay, Serum.

 

Negative

Reference values apply to all ages

Interpretation

Negative:

Treponema pallidum-particle agglutination has been ordered to distinguish between infection with T pallidum (syphilis) versus a falsely reactive treponemal antibody result.

 

Positive:

Specimen reflexed to determine rapid plasma reagin titer value.

Day(s) Performed

Monday through Saturday

Report Available

Same day/1 to 2 days

Performing Laboratory

Mayo Clinic Laboratories in Rochester

Test Classification

This test has been cleared, approved, or is exempt by the US Food and Drug Administration and is used per manufacturer's instructions. Performance characteristics were verified by Mayo Clinic in a manner consistent with CLIA requirements.

CPT Code Information

86592-Rapid Plasma Reagin Screen

86593-Rapid Plasma Reagin Titer (if appropriate)

86780-Syphilis Antibody by TP-PA (if appropriate)

LOINC Code Information

Test ID Test Order Name Order LOINC Value
RRPRS RPR Screen w/ Reflex to Titer, S 20507-0

 

Result ID Test Result Name Result LOINC Value
616866 RPR Screen w/ Reflex to Titer, S 20507-0