The client, diagnosed with coronary artery disease and a recent myocardial infarction, is being discharged. The client has a medical prescription for nitroglycerin sublingual as needed. Which nursing instruction is correct?

Swallow 1 nitroglycerin tablet with a full glass of water and repeat in 5 minutes.

Apply 1 nitroglycerin transdermal patch to your chest, ensuring to remove any previous patches.

Place 3 nitroglycerin tablets under the tongue and notify physician if pain is not relieved.

Take 1 tablet of nitroglycerin and call 911 or go to emergency department if chest pain is not relieved in 5 minutes, and repeat medication for a total of 3 tablets at 5 minute intervals.