Because they cause vasoconstriction,alpha₁-adrenergic agonists are especially useful for: A) causing hemostasis in skin and mucous membranes. B) producing mydriasis to facilitate ophthalmic examinations. C) slowing the heart rate in tachycardic patients. D) treating hypotension.

Question

Quizplus · Accepted Answer

The vasoconstrictive effects of alpha₁-adrenergic agonists,such as epinephrine,help produce hemostasis in skin and mucous membranes. These agents can increase blood pressure but are not the primary drugs used except in emergency situations. Alpha₁ receptors in the radial muscles of the iris,not vasoconstriction,cause mydriasis. Reflex bradycardia is a side effect and not a clinical use of these agents.

Because They Cause Vasoconstriction,alpha1-Adrenergic Agonists Are Especially Useful For

Because They Cause Vasoconstriction,alpha₁-Adrenergic Agonists Are Especially Useful For