Unit Statistical Report. Data, including losses and payroll by classification, resulting from every workers' compensation insurance policy written in California is reported to the WCIRB in a Unit Statistical Report (USR).
Carpal tunnel syndrome can cause left arm weakness. Tendinitis can cause left arm weakness. Left arm weakness can be an early sign of a heart attack. A sprained elbow can be the cause of left arm weakness. Typing on a keyboard can be hard on the wrists, possibly aggravating carpal tunnel problems. A pinched nerve in the neck may cause left arm weakness.
Several diseases can also cause elbow pain, though itâs usually not the main symptom. Arthritis: Many types of arthritis can affect your elbow, but the main ones are rheumatoid arthritis and osteoarthritis. Rheumatoid arthritis is the most common type of arthritis in the elbow. When you have it, your immune system attacks your bodyâs healthy tissue and causes swelling in your joints. You get osteoarthritis when your elbow cartilage breaks down over time, which means the bones rub together and cause pain and stiffness.