May be asymptomatic until something (e.g. infection, respiratory irritant) triggers decompensation
SOB
Hypoxia
Increased respiratory secretions
Wheezing, crackles
+/- pulmonary hypertension
Poor feeding
Bronchopulmonary dysplasia
Upper Airway diseases
Tracheomalacia
Allergic rhinitis and sinusitis
Respiratory distress syndrome
Large Airway Obstruction
Transient tachypnea of the newborn
Foreign body aspiration