The Nurse Is Teaching a Patient About Sublingual Nitroglycerin Administration

The nurse is teaching a patient about sublingual nitroglycerin administration.What information will the nurse include when teaching this patient?

A) Call 911 if pain does not improve after three doses.
B) If pain persists after one dose, administer a second dose.
C) Swallow the tablet with small sips of water.
D) Take the first tablet while sitting or lying down.