Rheumatoid Factor - Rheumatoid Arthritis

Learn about Rheumatoid Factor (RF) and its role in diagnosing Rheumatoid Arthritis in this 12-minute animated video. Explore the definition of RF as an IgM autoantibody against the Fc portion of IgG, and understand its 80% sensitivity in detecting Rheumatoid Arthritis. Discover why RF is not specific and can be present in various other conditions such as systemic lupus erythematosus, Sjögren syndrome, and certain infections. Compare RF with Anti-neutrophilic cytoplasmic antibodies (ANCA) and learn about their different patterns and associated conditions. Gain insights into the importance of RF in clinical diagnosis and its limitations as a standalone test for Rheumatoid Arthritis.