Laboratory Test Guide

RPR Quantitative (Sendout)

General Information

Lab Name

RPR Quantitative (Sendout)

Lab Code

RRPRQG

Epic Name

RPR Quantitative (Sendout)

Description

Test Information: Quantitative RPR test with antibody titer. May be used to monitor response to therapy.

Ordering Note: This test should be ordered for patients with a known history of syphilis. For screening new syphilis cases, refer to separate test Serologic Syphilis Screen [SYPHSC].

Synonyms

Anti-phospholipid, Antiphospholipids, APL, Rapid Plasma Reagin, Syphilis

Components

Code Name
RRPRQ RPR Quantitative (Sendout)
UW441 ImmStudy RPR Quant

Interpretation

Method

Particle Agglutination

Reference Range

See individual components

Ref. Range Notes

Reference Range: Nonreactive

Guidelines

Ordering & Collection

Specimen Type

Blood

Collection

6 mL blood in RED TOP tube or GOLD SST

Forms & Requisitions

  • Seattle King County Public Health Laboratory Requisition

Handling Instructions

Outside Laboratories:

  • Centrifuge sample and aliquot serum into a separate plastic vial. Refrigerate serum while awaiting shipment. Transport with a cold pack.
  • Required Information: Include the following on the DLMP requisition: Patient demographics (including address, date of birth, and sex) and ordering provider name and NPI number. Failure to provide this information may result in test delays.

Stability: Refrigerated: Preferred.

Quantity

requested: 1 mL serum + 1 mL serum for UW441
minimum: 0.5 mL serum

Processing

Centrifuge sample and transfer serum to two separate plastic vials. If sample volume is low, prioritize the sendout test (RRPRQ).

  • RRPRQ: Place serum aliquot in the refrigerated Sendouts rack (UWMT or HMC).
  • UW441: Freeze serum aliquot in the -20°C Immunology rack.

Sendouts:

  • Order SKPH Test: RPR Quantitative (under "Syphilis Serology").
  • When completing the SKPH requisition, include the patient demographics (including address, patient ID, date of birth, and sex) and ordering provider name and NPI number.
  • Send refrigerated sample with a completed requisition to Seattle King County Public Health Lab, located at Harborview Medical Center Basement West Clinic Wing.

Stability: Refrigerated: Preferred.

Performance

LIS Dept Code

Performing Location(s)

Sendout Seattle King County Public Health Laboratory
206-744-8950

325 9th Ave
Seattle, WA 98104

Frequency

Available STAT?

No

Billing & Coding

CPT codes

86593

LOINC

Interfaced Order Code

UOW5229