A 14-year-old child with cystic fibrosis is admitted to the pediatric unit with increased respiratory distress and thick, purulent sputum. The child's parents ask the nurse about the most important intervention to help their child manage respiratory symptoms at home. What should the nurse emphasize as the priority intervention?

• 1 Administering bronchodilators before meals to improve appetite
• 2 Limiting physical activity to prevent respiratory fatigue
• 3 Using a humidifier in the child's bedroom during sleep
• 4 Performing chest physiotherapy and airway clearance techniques consistently ✓ 정답

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