Metoprolol is a medication that has which primary effects on the cardiovascular system?

Metoprolol is a medication that has which primary effects on the cardiovascular system?

• A. Slows the heart rate and lowers blood pressure
• B. Raises the heart rate and increases blood pressure
• C. Slows heart rate only
• D. Lowers blood pressure only

Answer: (A)

Metoprolol is a selective beta-1 adrenergic blocker. By blocking sympathetic stimulation to the heart, it produces a slower heart rate (negative chronotropic effect) and reduces the force of the heart’s contractions (negative inotropic effect). This drop in heart rate and contractility lowers cardiac output, which tends to lower blood pressure. Additionally, beta-1 blockade reduces renin release from the kidneys, offering another route to lower blood pressure. So the main cardiovascular effects are slowing the heart rate and lowering blood pressure. It would not raise heart rate, and its BP effect is tied to the reduction in cardiac output and renin activity rather than a BP change on its own.

Metoprolol is a selective beta-1 adrenergic blocker. By blocking sympathetic stimulation to the heart, it produces a slower heart rate (negative chronotropic effect) and reduces the force of the heart’s contractions (negative inotropic effect). This drop in heart rate and contractility lowers cardiac output, which tends to lower blood pressure. Additionally, beta-1 blockade reduces renin release from the kidneys, offering another route to lower blood pressure. So the main cardiovascular effects are slowing the heart rate and lowering blood pressure. It would not raise heart rate, and its BP effect is tied to the reduction in cardiac output and renin activity rather than a BP change on its own.