Pharmacology 7th Edition by Henry Hitner,Barbara Nagle

Exercise 15

Mr. Wise is a 75-year-old , otherwise healthy male who was admitted to the hospital for a total right knee replacement. On postoperative day 2 , a ventricular arrhythmia was diagnosed. The cardiologist was consulted and prescribed Norpace 150 mg QID. On the fourth day postoperatively , Mr. Wise complains he cannot urinate and is ordered by the house physician to be catheterized. The house physician asks what medications the patient is on. What do you think the physician is thinking about the cause of the urinary difficulties