Which drug is an alpha adrenergic blocker?

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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

Which drug is an alpha adrenergic blocker?

Explanation:
Alpha adrenergic blockers work by blocking alpha-1 receptors on vascular smooth muscle, which prevents norepinephrine-induced vasoconstriction. This causes vasodilation and lowers blood pressure. Prazosin fits this mechanism exactly, making it the correct choice as the alpha-adrenergic blocker. Lisinopril is an ACE inhibitor, metoprolol is a beta-adrenergic blocker, and hydrochlorothiazide is a diuretic; none of these act primarily as alpha-1 blockers.

Alpha adrenergic blockers work by blocking alpha-1 receptors on vascular smooth muscle, which prevents norepinephrine-induced vasoconstriction. This causes vasodilation and lowers blood pressure. Prazosin fits this mechanism exactly, making it the correct choice as the alpha-adrenergic blocker. Lisinopril is an ACE inhibitor, metoprolol is a beta-adrenergic blocker, and hydrochlorothiazide is a diuretic; none of these act primarily as alpha-1 blockers.

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