Rheumatoid Factor : 4418

Test Code
RHEFAC or 4418


Alias/See Also
RF


CPT Codes
86431

Transport Container
Preferred Specimen
1 mL serum
  
Minimum Volume
0.5 mL


Transport Temperature
Room temperature.


Specimen Stability
Room temperature: 5 days; Refrigerated: 7 days; Frozen: 90 days


Methodology
Immunoturbidimetric

Setup Schedule
Sunday -Saturday


Report Available
1 day


Reference Range
<14 IU/mL


Clinical Significance
Elevated RF is found in collagen vascular diseases such as SLE, rheumatoid arthritis, scleroderma, Sjogren's syndrome, and in other conditions such as leprosy, tuberculosis, syphilis, malignancy, thyroid disease and in a significant percentage of otherwise normal elderly patients.


Performing Laboratory
med fusion



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.