Rheumatoid Factor (RF) Test and What It Means
The rheumatoid factor test is most often used to help diagnose rheumatoid arthritis (RA). Sometimes it is ordered to support a diagnosis of Sj?gren's disease, both of which are autoimmune diseases.
Source: Verywell Health
12 Unusual Symptoms of Rheumatoid Arthritis
While rheumatoid arthritis most commonly causes joint pain, inflammation, and swelling, systemic symptoms such as fatigue can affect the whole body. Inflammation from rheumatoid arthritis can also target other systems of the body, resulting in a variety of different symptoms. These are known as extra-articiular manifestations.
Effects of Rheumatoid Arthritis Throughout the Entire Body
Your musculoskeletal system provides the body with movement, stability, form, and structure. This body system is divided into two systems—the muscular system and the skeletal system.
