Sample Requirements:
SST tube.
Purpose:
Measures IgM rheumatoid factor, commonly elevated in RA.
High Levels:
Rheumatoid arthritis, autoimmune disease.
Low Levels:
Negative RF.
Reference Range:
<14 IU/mL
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All Lab Tests
RF IgM
Test Code:
PDL0078
Division:
Autoimmune
CPT Code:
86430
Sample Type:
Serum