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RFS
RHEUMATOID FACTOR, SERUM

Test Code RFS 
Test RHEUMATOID FACTOR, SERUM 
Methodology Turbidimetric Immunoassay 
Description Useful for diagnosis of rheumatoid arthritis. 
Specimen Draw blood in either a plain, red-top tube or serum gel tube. Spin down and send 0.5 mL (0.3 mL minimum) of serum refrigerated. 
Reference Values < 14 IU/mL 
Analytic Time 1 Day 
Day(s) Test Set Up Monday through Sunday 
CPT Code(s) 86431