Rheumatoid Factor

The Rheumatoid Factor (RF) test is a blood analysis checking for a specific protein made by the immune system that may indicate disease activity. While RF testing is primarily utilized alongside other results to help pinpoint a diagnosis of Rheumatoid Arthritis, higher levels can also be associated with other autoimmune disorders or chronic infections. A high RF level alone does not confirm a diagnosis, but it provides a critical piece of the puzzle for healthcare providers, especially if you are experiencing symptoms like joint pain or stiffness. Knowing your RF status can help your doctor choose the most effective path forward for treatment.