ENT Bilateral choanal atresia can cause significant airway distress in newborn because of which of the following reasons? A Infants with choanal atresia usually have concomitant cardiac anomalies. B Infants are initially obligate nasal breathers. C The neonatal larynx is smaller and collapses easily. D Neonates have low oxygen reserves. 💡 Explanation Bilateral choanal atresia can cause significant airway distress in newborn because of which of the following reasons? ✓ Correct Answer: B. Infants are initially obligate nasal breathers.