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A Patient with a Hypertensive Emergency Is Given an Intravenous

Question 5

Multiple Choice
A patient with a hypertensive emergency is given an intravenous infusion of a drug that dilates renal afferent and efferent arterioles and is rapidly metabolized with a half-life of 5 minutes.Which mechanism is responsible for the therapeutic effect of this drug?

A patient with a hypertensive emergency is given an intravenous infusion of a drug that dilates renal afferent and efferent arterioles and is rapidly metabolized with a half-life of 5 minutes.Which mechanism is responsible for the therapeutic effect of this drug?


A) activation of dopamine D₁ receptors
B) activation of dopamine D₂ receptors
C) blockade of α₁-adrenoceptors
D) activation of α₂-adrenoceptors
E) blockade of α₁- and β₁-adrenoceptors

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