A 72-year-old patient with a history of ischemic cardiomyopathy is admitted to the medical unit with acute exacerbation. The patient presents with severe dyspnea, orthopnea, and frothy pink sputum. Vital signs: BP 170/100 mmHg, HR 105 bpm, RR 30/min, O2 sat 85% on room air. The patient is started on oxygen therapy and IV furosemide. After 4 hours of treatment, which nursing intervention should be the priority?

• 1 Increase the oxygen flow rate to improve saturation
• 2 Administer prescribed PRN morphine for dyspnea relief
• 3 Encourage the patient to perform deep breathing exercises
• 4 Assess urine output and daily weight to evaluate diuretic effectiveness ✓ 정답

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