A nurse is reinforcing teaching with the parents of a school-age child who has cystic fibrosis. Which of the following statements should the nurse make?

"Bradycardia is an early indicator of a pneumothorax."

"Administer a bronchodilator to the child after chest percussion therapy."

"Engage the child in daily aerobic exercise."

"A pigeon-shaped chest might become evident as the disease progresses."