What is the drug class of choice for a patient with both angina and hypertension due to its vasodilatory effect?

Prepare for the Rasmussen Pharmacology Exam 3. This quiz includes multiple-choice questions with hints and explanations. Review essential pharmacological concepts and get ready for your exam!

Multiple Choice

What is the drug class of choice for a patient with both angina and hypertension due to its vasodilatory effect?

Explanation:
Vasodilation of arterial vessels to lower afterload and improve the myocardial oxygen balance is what makes calcium channel blockers the best choice when you have both angina and hypertension. These drugs block L-type calcium channels in vascular smooth muscle, causing arterial dilation that lowers systemic vascular resistance and blood pressure, while also improving coronary blood flow. Dihydropyridine CCBs (like amlodipine or nifedipine) are strong arterial vasodilators, directly reducing afterload and BP, which helps with hypertension and can relieve effort angina by decreasing cardiac oxygen demand. Non-dihydropyridine CCBs (like verapamil or diltiazem) also slow the heart rate and decrease contractility, further reducing oxygen demand and helping with angina control. ACE inhibitors and diuretics mainly lower blood pressure through volume or RAAS effects and don’t provide the same direct arterial and coronary vasodilation that benefits both angina and hypertension. Beta blockers reduce heart rate and contractility but don’t dilate arteries, which may be less ideal if vasodilation is a key goal for this patient.

Vasodilation of arterial vessels to lower afterload and improve the myocardial oxygen balance is what makes calcium channel blockers the best choice when you have both angina and hypertension. These drugs block L-type calcium channels in vascular smooth muscle, causing arterial dilation that lowers systemic vascular resistance and blood pressure, while also improving coronary blood flow.

Dihydropyridine CCBs (like amlodipine or nifedipine) are strong arterial vasodilators, directly reducing afterload and BP, which helps with hypertension and can relieve effort angina by decreasing cardiac oxygen demand. Non-dihydropyridine CCBs (like verapamil or diltiazem) also slow the heart rate and decrease contractility, further reducing oxygen demand and helping with angina control.

ACE inhibitors and diuretics mainly lower blood pressure through volume or RAAS effects and don’t provide the same direct arterial and coronary vasodilation that benefits both angina and hypertension. Beta blockers reduce heart rate and contractility but don’t dilate arteries, which may be less ideal if vasodilation is a key goal for this patient.

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