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13856 Pharmacology

In the beginning of resuscitation effos, 0.5 mg of epinephrine is administered subcutaneously. Which adrenergic receptors, in which tissues, are responsible for the beneficial effect of epinephrine in this patient?

AAlpha-1 receptors in vascular smooth muscle, alpha-2 receptors in the hea, and beta-1 receptors in bronchial smooth muscle
BAlpha-1 receptors in vascular smooth muscle, alpha-2 receptors at presynaptic nerve terminals, beta-1 receptors in bronchial smooth muscle
CAlpha-1 receptors in vascular smooth muscle, beta-1 receptors in the hea, and beta-2 receptors in bronchial smooth muscle
DAlpha-2 receptors in vascular smooth muscle and beta-2 receptors in vascular smooth muscle
Pharmacology
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