Read the Following Excerpt from a Patient's Health Record: "On

Multiple Choice

Read the following excerpt from a patient's health record: "On the admission exam, Decker was found to have mild lumbar lordosis, pseudohypertrophy of his calf muscles, and a waddling gait. No hyporeflexia was noted. The initial concern was a muscular dystrophy and an electromyogram showed myopathic changes. A muscle biopsy was then performed to help distinguish which of the muscular dystrophies the patient has. The results are pending." Which of the following tests showed myopathic changes?

A) a record of the electrical activity of a muscle
B) imaging procedure using a computer to produce cross sections along an axis
C) procedure for looking into a muscle
D) procedure for recording the electrical activity of a muscle
E) procedure for studying muscles