General Principles Main.1-10,Q 1,A 57-year-old woman comes to the physician for a follow-up visit regarding her lower back pain. She originally presented last month with significant continuous lower back pain that was worse at night and would awaken her from sleep. She tried over-the-counter ibuprofen, with no relief of her symptoms. When her pain persisted, the patient was scheduled for magnetic resonance imaging of her back. The report returned today and shows findings consistent with metastat