1540 Rheumatoid Factor

Components
NAME METHOD REFERENCE RANGE UNITS
Rheumatoid Factor TURB  < 60  IU/mL 


Specimen Requirements
TYPE VOLUME TEMPERATURE INSTRUCTIONS
PRIMARY
1 Serum 1 (0.5) mL   Ambient - 72 Hour(s), Refrigerated - 7 Day(s), Frozen - 2 Month(s)  


Clinical utility
Rheumatoid factor is essentially an IgM antibody that is directed toward IgG. Although it is a non-specific marker, it is associated with autoimmunity and rheumatoid arthritis. IgG antibodies may be altered to be recognized as "foreign", resulting in an autoimmunity.


Reported: Same day

CPT Code: 86431