A preterm infant is now 7 weeks old. She was intubated for 2 weeks and was weaned off oxygen at 3 weeks of age. You are about to leave your office for Thanksgiving holiday when the emergency room calls to tell you she has new hypoxia, respiratory distress, wheezes, and runny nose. A chest radiograph reveals patchy infiltrates and hyperexpansion in both lung fields. The newborn's 2-year-old sibling has an upper respiratory infection.
a) Bronchiolitis
b) Bronchopulmonary dysplasia (BPD)
c) Cystic fibrosis
d) Pneumonia