Kimberly, a 39-year-old woman, visits the outpatient clinic…

Kimberly, a 39-year-old woman, visits the outpatient clinic and complains of inability to reach a cupboard shelf just above her head (inability to elevate/abduct the arm beyond 90 degrees).  History reveals that 2 months previously, she underwent a mastectomy. Nerve damage is suspected.  Find correct statements regarding this condition