Sample Requirements:
SST tube.
Purpose:
Detects IgA rheumatoid factor, an antibody linked to RA.
High Levels:
Rheumatoid arthritis, chronic infections.
Low Levels:
No IgA RF detected.
Reference Range:
<20 IU/mL
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All Lab Tests
RF IgA
Test Code:
PDL0077
Division:
Autoimmune
CPT Code:
86431
Sample Type:
Serum