Rheumatoid factor represents a valuable tool in the differential diagnosis of rheumatic diseases.
|< 15 IU/mL||95th percentile|
|19 IU / mL|
Each laboratory should check if the reference ranges are transferable to its own patient population and determine own reference ranges if necessary. For diagnostic purposes, the results should always be assessed with the patient’s medical history, clinical examinations and other findings.
- Rheumatoid arthritis