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.
Elbow pain can be caused by many problems. A common cause in adults is tendinitis. This is inflammation and injury to the tendons, which are soft tissues that attach muscle to bone. People who play racquet sports are most likely to injure the tendons on the outside of the elbow. This condition is commonly called tennis elbow.