Rheumatoid Factor, Plasma or Serum

Test Code
1030


CPT Codes
86431

Preferred Specimen
Submit only 1 of the following specimens:

Plasma
Container/Tube: Green-top (heparin) tube(s)
Specimen Volume: 1 mL (minimum volume: 0.5 mL) of plasma
Collection Instructions: Fasting.
Note: 1. Indicate plasma. 2. Label specimen appropriately (plasma).

Serum
Container/Tube: Serum gel tube(s)
Specimen Volume: 1 mL (minimum volume: 0.5 mL) of serum
Collection Instructions: Fasting.
Note: 1. Indicate serum. 2. Label specimen appropriately (serum).


Transport Temperature
Refrigerate


Methodology
Rate Nephelometry 

Setup Schedule
Monday through Friday


Reference Range
0-15 IU/mL


Clinical Significance
Useful for diagnosis and prognosis of rheumatoid arthritis. 


Performed By
CoxHealth



The CPT Codes provided in this document are based on AMA guidelines and are for informational purposes only. CPT coding is the sole responsibility of the billing party. Please direct any questions regarding coding to the payor being billed. Any Profile/panel component may be ordered separately. Reflex tests are performed at an additional charge.