Which of the following is a beta-blocker?

Rationale

Metoprolol is a beta-blocker.

Metoprolol belongs to a class of medications known as beta-blockers, which are primarily used to manage cardiovascular conditions by blocking beta-adrenergic receptors. This action reduces heart rate and blood pressure, making it effective in treating hypertension and heart-related issues.

A (Lisinopril) YOUR ANSWER

Lisinopril is an ACE inhibitor, not a beta-blocker. It works by blocking the conversion of angiotensin I to angiotensin II, leading to vasodilation and reduced blood pressure. While it is used to treat high blood pressure and heart failure, its mechanism differs significantly from that of beta-blockers.

B (Metoprolol) CORRECT

Metoprolol is specifically designed to block beta-adrenergic receptors in the heart, leading to decreased heart rate and contractility. This property makes it effective for treating conditions such as hypertension, angina, and heart failure. As the only beta-blocker listed, it is the correct choice for this question.

C (Amlodipine) YOUR ANSWER

Amlodipine is a calcium channel blocker, not a beta-blocker. It functions by inhibiting calcium entry into vascular smooth muscle and cardiac muscle, resulting in vasodilation and lower blood pressure. Its mechanism of action is distinct from that of beta-blockers, which act on adrenergic receptors.

D (Furosemide) YOUR ANSWER

Furosemide is a loop diuretic used to treat conditions like edema and hypertension by promoting the excretion of sodium and water through the kidneys. It does not interact with beta-adrenergic receptors and therefore does not qualify as a beta-blocker.

Conclusion

Beta-blockers, like metoprolol, are crucial for managing various cardiovascular conditions by blocking beta-adrenergic receptors. In contrast, lisinopril, amlodipine, and furosemide function through different mechanisms, making them unsuitable for classification as beta-blockers. Understanding these distinctions is vital for effective pharmacological treatment and patient management.

Which of the following is a beta-blocker?

Metoprolol is a beta-blocker.

Related Questions

Related Quizzes

How familiar were you with this question?

Report an Issue

Rate this Practice Test