A nurse is reinforcing discharge teaching about sublingual nitroglycerin with a client who has angina. Which of the following statements indicates an understanding of the instructions?

A. "I understand that the medication can slow my heart rate.": Nitroglycerin works by dilating blood vessels, which can reduce blood pressure but does not significantly slow the heart rate. B. "I am going to take the medication with food.": Nitroglycerin should be taken sublingually without food, as food can interfere with its absorption. C. "I will take the medication every 10 minutes until the pain goes away.": The typical recommendation is to take 1 tablet every 5 minutes for up to 3 doses; if pain persists, seek medical attention. D. "I should feel the effects of the medication within 5 minutes.": Sublingual nitroglycerin typically works within 1-3 minutes to relieve chest pain.