Which finding in a newborn assessment may indicate a problem?

The indication that a newborn's nostrils flare slightly during respiration can be a sign of respiratory distress. Nasal flaring occurs when a newborn is attempting to increase their airflow because of difficulty breathing or decreased oxygen levels. This is a compensatory mechanism to help the infant breathe more effectively. It is essential to monitor any signs of respiratory distress closely, as prompt intervention may be necessary to ensure the newborn receives adequate oxygenation and care.

In contrast, the other findings, such as the newborn feeding well, maintaining a steady heart rate, and actively moving, typically align with signs of a healthy newborn. Feeding well and a steady heart rate indicate that the newborn is stable and receiving adequate nutrition, while active movement suggests alertness and engagement, which are positive indicators of neurological health.