Chest and Respiratory System

The respiratory rate in the newborn range is between 40 and 60 breaths/minute. Respiration might be periodic with short periods of apnea. There should be no nasal flaring or intercostal of subcostal retractions.

The breasts are palpable in term infants and may secrete a small amount of milk because of estrogenic effects from the mother (witch's milk). Unusually widely spaced nipples may be suggestive of a chromosomal anomaly.