RPRT - Specimen: Rapid Plasma Reagin (RPR), Response to Therapy, Serum

Test Catalog

Test Name

Test ID: RPRT    
Rapid Plasma Reagin (RPR), Response to Therapy, Serum

Testing Algorithm Delineates situation(s) when tests are added to the initial order. This includes reflex and additional tests.

If this test is positive, RPR titer will be performed at an additional charge.

Specimen Type Describes the specimen type needed for testing


Advisory Information

This test is not intended for medical-legal use.


This test is for monitoring response to therapy in patients treated for syphilis infection. This test should not be used as a primary diagnostic approach for syphilis.


To screen for undiagnosed syphilis infection, order SYPGR / Syphilis IgG Antibody with Reflex, Serum.

Specimen Required Defines the optimal specimen. This field describes the type of specimen required to perform the test and the preferred volume to complete testing. The volume allows automated processing, fastest throughput and, when indicated, repeat or reflex testing.


Preferred: Serum gel

Acceptable: Red top

Specimen Volume: 0.5 mL

Specimen Minimum Volume The amount of sample necessary to provide a clinically relevant result as determined by the Laboratory.

0.3 mL

Reject Due To Identifies specimen types and conditions that may cause the specimen to be rejected


Mild OK; Gross reject


Mild OK; Gross reject





Specimen Stability Information Provides a description of the temperatures required to transport a specimen to the laboratory. Alternate acceptable temperature(s) are also included.

Specimen TypeTemperatureTime
SerumRefrigerated (preferred)14 days
 Frozen 14 days