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.
Care Advice. Mild Elbow Pain. What You Should Know: Elbow pain can be caused by many things. Muscle strain and overuse can cause elbow pain. Elbow pain can also be caused by arthritis, tendinitis, and bursitis. The best way to treat elbow pain will depend on the exact cause.