What is NOT a feature of symptoms indicating neonatal hypoglycemia?

The presence of a stable heart rate is not considered a feature of symptoms indicating neonatal hypoglycemia. In contrast, neonates experiencing hypoglycemia often exhibit various physical symptoms, including tremors, jittery movements, and potentially cyanosis. Tremors and jitteriness are manifestations of the nervous system's response to low glucose levels, while cyanosis indicates inadequate oxygenation, which can occur if the hypoglycemia progresses or is severe. The presence of a stable heart rate suggests that the infant's cardiovascular system is functioning optimally, which does not align with the presentation of hypoglycemia, where disturbances in metabolism may impact overall physiological stability. Thus, a stable heart rate would likely mean the infant is not experiencing the distress typically associated with hypoglycemia.