Review Question - QID 217985

A 42-year-old mechanic sustained an injury to his arm while lifting an engine block. At the time, he felt a pop in his arm that was accompanied by swelling and ecchymosis. Several weeks later he presents to your office with an MRI that was obtained by his primary care provider. A selected cut of the sagittal T2 sequence is depicted in figure A. If the patient opts to treat his injury nonsurgically, what activity will the patient have the most difficulty performing?