Multiple Choice
A patient in heart failure is given a drug that is classified as a beta₁-adrenergic agonist.The drug
A) blocks the beta1-adrenergic receptors and causes a (-) chronotropic and (-) inotropic effect.
B) activates the beta1-adrenergic receptors and causes bronchoconstriction.
C) activates the beta1-adrenergic receptors and causes a (+) inotropic effect.
D) activates the vagus nerve, thereby slowing heart rate and strengthening myocardial contraction.
Correct Answer:

Verified
Correct Answer:
Verified
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