Isoproterenol, a beta agonist, would cause a decrease in blood pressure by vasodilation; therefore, choices A, B, and C can be immediately eliminated. The decrease in heart rate is due to a baroreceptor reflex. The increased blood pressure leads to increased parasympathetic and decreased sympathetic tone to the heart.

Does isoproterenol lower blood pressure?

Isoproterenol, a beta agonist, would cause a decrease in blood pressure by vasodilation; therefore, choices A, B, and C can be immediately eliminated. The decrease in heart rate is due to a baroreceptor reflex. The increased blood pressure leads to increased parasympathetic and decreased sympathetic tone to the heart.

What does isoproterenol do to BP?

Isoproterenol is a potent, nonselective β-adrenergic agonist, devoid of α-adrenergic agonist activity. Isoproterenol dilates skeletal, renal, and mesenteric vascular beds and decreases diastolic blood pressure.