What statement is most important for the teaching plan for a client who has started transdermal nitroglycerin patch?

• A. This medication works faster than sublingual nitroglycerin works.
• B. This medication is the strongest of any nitroglycerin preparation available.
• C. This medication should be used only when you are experiencing chest pain.
• D. This medication will work for 24 hours and you will need to change the patch daily.

Answer: (D)

Transdermal nitroglycerin patches provide a steady dose of nitrate over about 24 hours, which makes them a preventive therapy for angina rather than a fast-acting rescue option. Because the patch delivers the medication continuously, the teaching plan focuses on applying a new patch each day to maintain consistent effects and to prevent tolerance from built-up exposure. It’s also important to rotate application sites and avoid heat or hot environments that can increase absorption. Remember, this patch isn’t used for immediate chest pain relief—keep sublingual nitroglycerin on hand for acute symptoms and use it per instructions.