Mr. S., a 63-year-old college professor, is in the office for a yearly checkup. He feels he is generally healthy, and he does not take any medications. He does say that he has one problem that he...

Mr. S., a 63-year-old college professor, is in the office for a yearly checkup. He feels he is generally healthy, and he does not take any medications. He does say that he has one problem that he wants to discuss with the physician. During his physical examination, he tells the physician, “I have something embarrassing to ask. I want to try one of those drugs that can help my sex life.” The physician reassures Mr. S. that he does not need to be embarrassed to ask about this. The physician then assesses Mr. S.’s sexual difficulties. At the end of the examination and assessment, Mr. S. is given a prescription for sildenafil (Viagra). 1. What teaching is important for Mr. S. before he starts this medication? 2. Eleven months later, Mr. S. is admitted to the emergency department with chest pains. After a thorough examination, including a cardiac catheterization, he is diagnosed with mild coronary artery disease and is started on isosorbide dinitrate, sustained-release, 40 mg every 12 hours. He is given a follow-up appointment with his physician in 1 week. What specific teaching is important at this time? 3. Mr. S. comes to the office for the follow-up appointment and tells the nurse that he wants to try saw palmetto for his prostate health. He has a neighbor who takes it and has no problems with it, and he has noticed that he has had a slight increase in difficulty with urination. He is also upset about what he was told in the hospital about his medications. How will the nurse respond to Mr. S., and what assessments are needed at this time?