MSFinals-4708
During a Monday lunchtime home visit, you encounter a 72-year-old patient with metastatic colon cancer who has been experiencing a decline in health over the past 2 months. The patient has extensive disease with liver and peritoneal metastatic deposits and also suffers from type II diabetes mellitus and moderately severe chronic obstructive pulmonary disease (COPD). To manage her pain, she takes ibuprofen 400 mg three times daily (tid), paracetamol 1 g four times daily (qds), morphine sulfate modified-release tablets (MST) 30 mg twice daily (bd), and Oramorph® 10 mg as required (prn). However, her abdominal pain has worsened over the weekend, and she has required three doses of Oramorph® per day in addition to her other analgesia. Although the dose is effective, the pain returns after about 2-3 hours. The patient is able to consume small amounts of food and fluid but appears to be in poor health with jaundice and quick, shallow breathing. What is the most appropriate treatment for her pain?