The palliative care nurse is admitting a client who has metastatic bone cancer and is unable to eat or drink without immediate nausea and vomiting. The client is reporting pain of 9 on a 0 to 10 scale, and the vital signs are recorded as a heart rate of 99 beats/minute, respirations 38 breaths/minute, blood pressure 110/80 mm Hg, and an oxygen saturation of 95% on 2L/nasal cannula. Which intervention should the nurse implement?