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Test Compendium

2121: RHEUMATOID ARTHRITIS FACTOR

Test Code

  • 2121

Test Synonym

  • Rheumatoid Factor, Quant

Minimum Volume

  • 0.5 mL

Specimen Requirements

  • Serum Or Plasma

Container

  • Serum Separator Tube, Plain Red Top Tube, Transfer Tube- Serum, Lavender Top Tube, Green Top Tube

Storage

  • Ambient

Turn Around Time

  • 4 days

CPT Codes

  • 86431
    *The CPT codes provided are based on AMA guidelines and are provided for informational purposes only. CPT coding is the responsibility of the billing entity. Please direct any questions regarding the CPT coding to the payer being billed.

Special Instructions

  • 1 mL SERUM OR PLASMA

Additional Information

  • SST or Red-top tube also acceptable lavender-top (EDTA) tube, or green-top (heparin) tube

Specimen Stability

  • AMBIENT: 14 days REFRIGERATED: 14 days FROZEN: 14 days