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Measures IgM
malnutrition or chronic illness
Measures serum bile acids to assess liver function and bile flow
chronic infections
Rheumatoid Factor (RF) Blood Test Collection Location:Pathology Collection Centre Measures IgMThe Rheumatoid Factor (RF) Blood Test measures an autoantibody associated with rheumatoid arthritis, Sjogren's syndrome, and other autoimmune conditions. A positive result supports further investigation but is not diagnostic on its own, as RF can be positive in other conditions and negative in up to 30% of people with RA.
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