A nurse is planning care for a child who has cystic fibrosis and a prescription to receive chest physiotherapy (CPT). Which of the following actions should the nurse plan to take?

A. Administering a bronchodilator like albuterol before CPT helps open the airways, making it easier to mobilize secretions. B. CPT should be performed before meals or 1 to 2 hours after eating to prevent vomiting. C. Vibration should be performed during exhalation, not inspiration, to help loosen secretions. D. Percussing each lung segment for 15 minutes is excessive; typically, each segment is percussed for 3-5 minutes.