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Test Code LAB206 Rheumatoid Factor, Quantitative, Plasma

Performing Laboratory

Barnes-Jewish Hospital Laboratory

Methodology

Immunoturbidimetric

Literature Reference:

Package insert: RF II, Tina-Quant. Roche Diagnostics, 03/2022.

Specimen Requirements

Specimen Type: Plasma
Container/Tube: Mint-green top (lithium heparin)
Specimen Volume: Full tube

 

Day(s) Test Set Up

Monday through Sunday

Turnaround Time:
STAT: not available
Routine: 2 to 4 hours after receipt in laboratory

Test Classification and CPT Coding

86431

Reference Values

< 15 IUnits/mL

Literature References:

1. Rose NR, Friedman H, Fahey JL, eds. Manual of clinical laboratory immunology. 3rd ed. Washington, D.C.: American Society for Microbiology, 1986:759-61.

Specimen Transport Temperature

Ambient

Additional Information

For BJH Laboratory Use Only

Alternate Tube:

1 dark green-top (lithium heparin) tube

1 red-top tube
1 lavender-top (EDTA) tube
Analyte Stability:
See Analyte Stability Chart under General Information for a complete list.


Laboratory Processing Instructions:

Test performed in BJH Core Lab.  Processed by automated line for delivery to the Cobas 8000.  Completed specimens are stored refrigerated 5 days.

LOINC Code Information

Name LOINC Code
Rheumatoid Factor 11572-5