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?

Choice A reason: Obtaining another transdermal patch and positioning it on the client's left upper chest is unnecessary. The current patch is still effective and does not need to be replaced. The immediate goal is to manage the acute chest pain.Choice B reason: Leaving the patch in place and administering a PRN dose of sublingual nitroglycerin is the correct action. Sublingual nitroglycerin works quickly to relieve acute chest pain by dilating the coronary arteries, providing immediate relief while the transdermal patch continues to offer sustained relief.Choice C reason: Withholding further doses of nitroglycerin until contacting the healthcare provider is not appropriate when the client is experiencing acute chest pain. Immediate intervention with sublingual nitroglycerin is necessary to manage the pain and prevent further complications.Choice D reason: Reassuring the client that the patch will begin to take effect within a few minutes is not sufficient. The transdermal patch provides slow-release medication, and sublingual nitroglycerin is needed for immediate relief of acute chest pain.