The nurse is caring for a client with newly diagnosed Prinzmetal's (variant) angina and has a prescription for amlodipine. Which of the following information is accurate about amlodipine?

Question

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Prinzmetal's angina is caused by coronary artery spasm. Calcium channel blockers (e.g., amlodipine, nifedipine) are a first-line therapy for this type of angina. Platelet inhibitors, such as Aspirin, help prevent coronary artery thrombosis, and ?-blockers decrease sympathetic stimulation of the heart. Medications or activities that increase myocardial contractility will increase the incidence of angina by increasing oxygen demand.

The Nurse Is Caring for a Client with Newly Diagnosed