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 A
Explanation
Choice A rationale
Waiting at least 5 minutes between puffs allows the first dose to take effect, optimizing absorption and reducing side effects when different inhaled medications are used.
Choice B rationale
Waiting 10 minutes between puffs is unnecessary and might reduce adherence to treatment due to the prolonged interval.
Choice C rationale
"None of the above" does not provide a valid education point for using metered-dose inhalers.
Choice D rationale
"All of the above" is incorrect as it includes a recommendation that is not necessary (waiting 10 minutes). .
Correct Answer is D
Explanation
Choice A rationale
Supplements alone are not sufficient to treat cancer. They may be used as supportive care but not as primary treatment.
Choice B rationale
Late detection reduces treatment options and effectiveness, leading to poorer outcomes for cancer patients.
Choice C rationale
Herbal remedies alone do not have scientifically proven efficacy in treating cancer and should not replace conventional treatments.
Choice D rationale
Chemotherapy uses cytotoxic drugs to kill or inhibit cancer cell growth, making it a primary treatment for many cancers, including pancreatic cancer. .
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