A nurse is caring for a client who is postoperative following a right radical mastectomy. Which of the following actions should the nurse take to prevent the development of lymphedema?

A Obtain blood pressure readings using the client's right arm. B Limit range-of-motion exercises with the affected arm. G Avoid tight clothing. C Keep both arms below the level of the client's heart. F Apply compression bandages. D Use the client's left arm to obtain blood samples. E Elevate the right arm.