A nurse is caring for a client that is newly diagnosed with hypertension.Which of the following medications is a beta-adrenergic blocker that has a mechanism of action to decrease heart rate, myocardial contractility, and cardiac output, and is also used to treat hypertension?
Metoprolol.
Nitroglycerin.
Losartan.
Metformin.
The Correct Answer is A
Choice A rationale
Metoprolol is a beta-adrenergic blocker that works by decreasing heart rate, myocardial contractility, and cardiac output. It is commonly used to treat hypertension by reducing the workload on the heart and lowering blood pressure.
Choice B rationale
Nitroglycerin is a vasodilator that is used to treat angina by dilating blood vessels and improving blood flow to the heart. It does not have the same mechanism of action as beta-adrenergic blockers.
Choice C rationale
Losartan is an angiotensin II receptor blocker (ARB) that helps relax blood vessels and lower blood pressure. It does not directly decrease heart rate or myocardial contractility like beta-adrenergic blockers.
Choice D rationale
Metformin is an oral hypoglycemic agent used to manage type 2 diabetes by improving insulin sensitivity and reducing glucose production in the liver. It is not used to treat hypertension and does not have the same mechanism of action as beta-adrenergic blockers.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Hyperglycemia refers to high blood sugar levels, which is not treated with levothyroxine.
Choice B rationale
Hypothyroidism is a condition characterized by low levels of thyroid hormones. Levothyroxine is used to replace or supplement these hormones.
Choice C rationale
Hypoglycemia refers to low blood sugar levels, which is not treated with levothyroxine.
Choice D rationale
Hyperthyroidism is a condition characterized by high levels of thyroid hormones, which is not treated with levothyroxine.
Correct Answer is D
Explanation
Choice A rationale
Metoprolol is a beta-blocker used to manage hypertension and other cardiovascular conditions, but it is not a vasodilator used for hypertensive crises.
Choice B rationale
Metformin is an oral hypoglycemic agent used to manage type 2 diabetes and has no role in treating hypertension or hypertensive crises.
Choice C rationale
Lisinopril is an angiotensin-converting enzyme (ACE) inhibitor used to manage hypertension and heart failure, but it is not typically used for hypertensive crises.
Choice D rationale
Nitroglycerin is a potent vasodilator used to rapidly lower blood pressure in hypertensive crises. It works by dilating blood vessels, thus reducing blood pressure effectively. .
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