What Is the Mechanism of Action of Racemic Epinephrine

Multiple Choice

What is the mechanism of action of racemic epinephrine?

A) Stimulates beta-adrenergic receptors,resulting in both relaxation of smooth muscles in the bronchial tree as well as a decrease in local airway edema with resultant decrease in the work of breathing
B) Stimulates alpha-adrenergic receptors,resulting in both relaxation of smooth muscles in the bronchial tree as well as a decrease in local airway edema with resultant decrease in the work of breathing
C) Stimulates both alpha- and beta-adrenergic receptors,resulting in both relaxation of smooth muscles in the bronchial tree as well as a decrease in local airway edema with resultant decrease in the work of breathing
D) Stimulates both alpha- and beta-adrenergic receptors,resulting in both contraction of smooth muscles in the bronchial tree as well as a increase in local airway edema with resultant decrease in the work of breathing