A client receiving oxygen via nasal cannula at 4 L/minute is reporting bilateral ear pain. The nurse observes reddened areas on the helix of both ears. The clients oxygenation saturation is 90%. Which intervention should the nurse implement? Place padding around the cannula tubing Decrease the flow rate to 1 L/minute Discontinue the use of the nasal cannula Apply lubricant to the cannula tubing.