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.
If you have elbow pain, a number of disorders could be the culprit. Overuse and sports injuries cause many elbow conditions. For example, golfers, baseball pitchers, tennis players, and boxers often have elbow disorders. Elbow disorders may involve arm muscles, elbow ligaments, tendons, and bones in the arm.