What is a typical response of the newborn when experiencing hypoglycemia due to maternal medication like terbutaline?

When a newborn experiences hypoglycemia, particularly as a result of maternal medication such as terbutaline, fatigue or lethargy is a common response. This occurs because low blood sugar levels can lead to insufficient energy supply to meet the body's metabolic demands. In such cases, the newborn may display signs of decreased activity, sleepiness, or lack of responsiveness, which can be perceived as lethargy.

Hypoglycemia impacts the central nervous system, leading to symptoms like poor feeding, weakness, and irritability. It's important for healthcare professionals to monitor glucose levels in newborns, especially those at risk due to maternal medications, to ensure timely intervention and support.

In contrast, increased alertness is less likely, as the newborn may be too lethargic to demonstrate heightened awareness or responsiveness in this state. Additionally, a strong feeding reflex is not typically observed since lethargy can significantly impair the newborn's ability or desire to suck or feed effectively. Normalization of heart rate would not be expected as a direct response to hypoglycemia; instead, heart rate may be affected by the infant’s overall condition.