A patient is prescribed metoprolol in the treatment of stable angina.
What is the best outcome measure of decreased cardiac workload due to metoprolol for the nurse to evaluate?
Patient's heart rate is 62 and regular.
Patient is able to lie flat without reporting difficulty breathing.
Patient does not report dyspnea after climbing one flight of stairs.
Patient has weight loss of 3 lbs (1.4 kg) over 2 weeks.
The Correct Answer is A
Choice A rationale
Metoprolol decreases cardiac workload by reducing heart rate and myocardial oxygen demand. A heart rate of 62 is within normal limits, demonstrating effective beta-blocker action and improved cardiac efficiency.
Choice B rationale
Lying flat without difficulty breathing reflects improved respiratory status, which is more related to pulmonary management, not directly indicative of reduced cardiac workload or beta-blocker efficacy.
Choice C rationale
Absence of dyspnea after climbing stairs suggests improved physical fitness but does not directly measure the cardiac effects of metoprolol, which targets heart rate reduction and myocardial oxygen use.
Choice D rationale
Weight loss is related to overall health improvement or dietary changes rather than specific effects of metoprolol, which primarily impacts heart rate and cardiac oxygen consumption.
Nursing Test Bank
Naxlex Comprehensive Predictor Exams
Related Questions
Correct Answer is B
Explanation
Choice A rationale
Nitroprusside is a vasodilator for hypertensive crises but is contraindicated in elevated ICP because it increases cerebral blood volume and exacerbates intracranial pressure, worsening the patient's condition.
Choice B rationale
Hypertonic saline (3%) helps reduce ICP by drawing excess fluid from brain tissue into the bloodstream through osmosis, effectively lowering intracranial pressure while maintaining cerebral perfusion.
Choice C rationale
Furosemide is a loop diuretic that reduces fluid overload but does not specifically target ICP. It is less effective in managing the osmotic balance required for intracranial pressure reduction.
Choice D rationale
Norepinephrine is a vasopressor used to treat hypotension and improve perfusion but does not lower ICP and may increase cerebral vasoconstriction, exacerbating intracranial hypertension. .
Correct Answer is D
Explanation
Choice A rationale
Clopidogrel is an antiplatelet agent that prevents platelet aggregation but does not affect arrhythmias. It reduces clot formation risk, which is critical for patients with a history of TIA or stroke.
Choice B rationale
Clopidogrel does not lower blood pressure. It works by inhibiting platelet aggregation to prevent thrombus formation, not addressing the mechanisms of hypertension or blood pressure control.
Choice C rationale
Clopidogrel does not directly affect peripheral artery disease symptoms, such as leg pain. It is used to reduce the risk of thrombotic events like strokes and heart attacks by preventing platelet aggregation.
Choice D rationale
Clopidogrel inhibits platelet aggregation by blocking the ADP receptor on platelets, reducing the risk of clot formation. This is crucial for preventing ischemic events in patients with a history of TIA.
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