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
Metformin is an oral diabetes medication that can interact with iodine-containing contrast dye, potentially leading to lactic acidosis.
Choice B rationale
Levothyroxine is used to treat hypothyroidism and does not interact with iodine-containing contrast dye.
Choice C rationale
Insulin Lispro is a rapid-acting insulin used to control blood sugar levels in diabetes and does not interact with iodine-containing contrast dye.
Choice D rationale
NPH Insulin is an intermediate-acting insulin used to control blood sugar levels and does not interact with iodine-containing contrast dye.
Correct Answer is B
Explanation
Choice A rationale
Insulin is a medication used to manage blood sugar levels in clients with diabetes. It is not appropriate for the management of deep vein thrombosis (DVT) as it has no anticoagulant properties.
Choice B rationale
Warfarin (Coumadin) is an oral anticoagulant commonly prescribed for the long-term management of DVT. It is suitable for clients who are unable to self-administer injections, making it a practical option for discharge.
Choice C rationale
Heparin is an anticoagulant that is typically administered via injection or IV. For clients unable to self-inject at home, it is not the best choice for managing DVT after discharge.
Choice D rationale
Enoxaparin (Lovenox) is a low-molecular-weight heparin that is also administered via injection. For clients unable to perform self-injections, this medication would not be the most appropriate option for home management of DVT.
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