A client with a history of angina reports the onset of chest pain. The nurse determines that the heart rate is 104 beats/minute and the blood pressure is 138/86 mm Hg. A transdermal nitroglycerin patch was applied 30 minutes ago to the right upper chest. Which action should the nurse take?

A) Applying another transdermal patch is not recommended without healthcare provider approval. Doubling the dose of nitroglycerin could increase the risk of hypotension and other adverse effects. B) Withholding further doses of nitroglycerin without healthcare provider guidance may lead to inadequate control of angina symptoms. However, in this scenario, the client has already received a dose of transdermal nitroglycerin, so withholding further doses may not be appropriate if the client’s symptoms persist. C) Leaving the patch in place and administering a sublingual dose of nitroglycerin is the correct action in this situation. Sublingual nitroglycerin provides rapid relief of angina symptoms by dilating blood vessels and improving myocardial oxygen supply. The transdermal patch may not have reached therapeutic levels yet, but the sublingual form can provide more immediate relief. D) While it’s important to reassure the client, especially during an episode of chest pain, relying solely on the transdermal patch to take effect may not provide timely relief. Administering sublingual nitroglycerin allows for faster absorption and symptom relief.