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.
Most elbow pain results from overuse injuries. Many sports, hobbies and jobs require repetitive hand, wrist or arm movements. Elbow pain may occasionally be due to arthritis, but in general, your elbow joint is much less prone to wear-and-tear damage than are many other joints. Common causes of elbow pain include:1  Broken arm. 2  Bursitis. 3  Cubital tunnel syndrome, which occurs when the ulnar nerve on the inside of your elbow is irritated or injured.4  Dislocated elbow. 5  Dislocation. 6  Elbow fracture. 7  Golfer's elbow. 8  Ligament sprains and tears.lbow pain may occasionally be due to arthritis, but in general, your elbow joint is much less prone to wear-and-tear damage than are many other joints. Common causes of elbow pain include: 1  Broken arm.