A patient is scheduled for an electromyography (EMG) test. The nurse is preparing the patient for the procedure. Which of the following actions should the nurse take to ensure the patient's safety and comfort during the EMG?

A. Instruct the patient to wash their hair prior to the test: EMG testing does not involve the scalp or hair; washing the hair is unnecessary. Preparation focuses on skin cleanliness and avoiding lotions or oils that can interfere with electrode placement. B. Tell the patient that the procedure will involve taking a small amount of tissue from the affected muscle: EMG does not require removal of muscle tissue; this description confuses EMG with a muscle biopsy. Providing incorrect information could cause unnecessary anxiety and confusion. C. Explain that the procedure involves inserting a needle into the muscle to record electrical activity: EMG involves placing a fine needle electrode into the muscle to assess electrical activity at rest and during contraction. Explaining this accurately helps the patient understand what to expect, reduces anxiety, and promotes cooperation during the procedure. D. Apply an ice pack to the muscles before the test to reduce discomfort: Applying ice is not standard practice for EMG and may temporarily alter muscle electrical activity, potentially affecting test results. Comfort measures focus on proper positioning and reassurance rather than local anesthesia or cold application.