All of the following events occur with an alpha1-agonist except which one?
a. vasoconstriction of smooth muscle
b. nasal decongestant
c. increase blood pressure
d. vasodilation of skeletal muscle
d. Alpha-adrenergic agonists cause vasoconstriction (constriction of blood vessels) and act as ocular and nasal decongestants. Most of the direct-acting agonists are catecholamines (e.g., epinephrine, norepinephrine, dopamine, isoproterenol, and dobutamine) and are used in the treatment of shock by increasing blood pressure via constriction of blood vessels (vasoconstriction).
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