A nurse is caring for a client following a total knee arthroplasty. The client reports a pain level on a pain scale of 0 to 10. Which of the following interventions should the nurse take?
1) Place pillows under the client's knee
2) Gently massage the area around the client's incision
3) Apply an ice pack to the client's knee
4) Perform range-of-motion exercises to the client's knee