7. Joints Affected by RA Cervical spine Neck stiffness and general loss of motion Shoulders Effusion difficult to detect on physical exam. Only objective finding is loss of motion. Elbow Synovitis is evident by palpating fullness and thickening in he radiohumeral joint. Hand and Wrist Wrists are affected in virtually all people with RA.MCP and PIP joints are often involved; the DIPs usually are spared. Hip Hip involvement is common in RA, but early manifestations are not apparent. Knee Effusions and synovial thickening of the knee usually are detected easily. Foot and Ankle Characteristically affects the MTP, talonavicular, and ankle joints.
8. Organs Affected by RA Skin Rheumatoid nodules in 50% of RA patients; dermal vasculitic lesions Eyes Keratoconjunctivitis sicca, episcleritis, scleritis Lungs Interstitial lung disease common, but may be asymptomatic Heart Pericardial effusion present in almost 50% of patients, but clinical symptoms are rare. Nervous system Results from cervical spine instability, peripheral nerve entrapment, and vasculitis resulting in mononeuritis multiplex. Blood Hypochromatic-microcytic anemia with low serum ferritin and low or normal iron-binding capacity almost universal in patients with active RA.