This test measures a specific type of rheumatoid factor (IgA) in the blood. Elevated levels of IgA-RF are often associated with autoimmune conditions such as rheumatoid arthritis. Testing for this marker helps doctors:
- Detect early signs of rheumatoid arthritis or related autoimmune diseases.
- Differentiate between inflammatory joint pain and other causes of discomfort.
- Monitor disease progression and response to treatment.
Because IgA-RF can appear before severe symptoms develop, identifying it early supports timely intervention that may prevent long-term joint damage and disability.