The nurse is reviewing the client's medical record. For each potential provider's prescription, click to specify if the potential prescription is anticipated, nonessential, or contraindicated for the client

Rationale: • Metoprolol 15 mg IV bolus: Beta-blockers reduce myocardial oxygen demand by lowering heart rate and blood pressure, which is essential in ST-elevation myocardial infarction. The client is tachycardic and hypertensive, increasing cardiac workload. IV metoprolol can help stabilize rhythm and limit infarct size. There are no signs of bradycardia or hypotension that would prevent its use. • Oxygen at 2 L/min via nasal cannula: The client’s oxygen saturation decreased from 93% to 89% on room air, indicating hypoxemia. Supplemental oxygen improves myocardial oxygen supply during acute ischemia. Maintaining adequate oxygenation is critical to limit further myocardial injury. Oxygen therapy is therefore appropriate and expected. • Draw electrolytes along with Hgb and Hct: Electrolyte imbalances, particularly potassium and magnesium, can worsen arrhythmias during myocardial infarction. Monitoring hemoglobin and hematocrit helps assess oxygen-carrying capacity and rule out contributing factors. These labs support safe medication administration and cardiac stabilization. Ongoing evaluation of metabolic status is essential in acute coronary syndrome. • Morphine 6 mg IV bolus every 3 hr as needed for pain: Morphine reduces chest pain and decreases sympathetic stimulation, lowering heart rate and preload. Pain control helps reduce myocardial oxygen consumption and anxiety. It also promotes venodilation, which can improve cardiac workload. In acute MI with persistent pain, morphine is commonly used when nitroglycerin alone is insufficient. • Nitroglycerin 0.5 mg SL now may repeat every 5 min up to 3 doses: Nitroglycerin promotes coronary vasodilation and decreases preload, improving myocardial oxygen balance. It is first-line therapy for ischemic chest pain in ST-elevation MI when blood pressure is adequate. The client’s blood pressure is elevated, making nitroglycerin appropriate. Repeated dosing allows rapid reassessment of pain relief and hemodynamic response. • Obtain daily weight: Daily weights are useful for long-term fluid status monitoring, especially in heart failure management. However, in the setting of acute ST-elevation myocardial infarction, immediate priorities include oxygenation, pain relief, rhythm stabilization, and reperfusion. Daily weight does not influence urgent management decisions. • Atropine 0.5 mg IV bolus every 5 min up to 2 mg if heart rate drops below 60: The client is tachycardic with a heart rate of 120/min, not bradycardic. Atropine increases heart rate and would worsen myocardial oxygen demand in this scenario. Administering atropine could exacerbate ischemia and increase cardiac workload.