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

A. Vibration is typically performed during exhalation, not inspiration. This helps to loosen secretions. B. Percussion should not last 15 minutes per lung segment; it is generally performed for shorter periods to avoid discomfort or injury. C. Administering albuterol prior to CPT helps open the airways, making it easier for the child to expectorate secretions. This is a standard practice for improving the effectiveness of CPT. D. It is not recommended to perform CPT immediately after a meal, as it may increase the risk of aspiration or discomfort. It is usually advised to wait at least 30 minutes after eating.