A Patient Who Has Stable Angina Pectoris Is Given Nitroglycerin

A patient who has stable angina pectoris is given nitroglycerin to use as needed.In addition to pharmacotherapy,the nurse will give the patient which instruction?

A) Avoid extremes in weather.
B) Begin a rigorous exercise program.
C) Drink glass of red wine daily.
D) Seek medical care at first sign of pain.