What is the normal heart rate for an awake infant?

The normal heart rate for an awake infant is typically within the range of 100 to 180 beats per minute. This range reflects the physiological demands of infants, who generally have a higher metabolic rate compared to older children and adults. The increased heart rate helps meet their greater need for oxygen and nutrients as they grow and develop.

When considering the average heart rate, it's important to note that infants’ rates can fluctuate based on activity level, sleep cycles, and their overall health. When awake and active, an infant’s heart rate is often towards the higher end of this range, while it may decrease during restful states or sleep.

While other ranges provided in the choices may include some overlap with the correct range, the selection of 100-180 specifically aligns with established pediatric guidelines and current clinical practice standards for heart rates in infants. Understanding this normal range is critical for identifying potential cardiac issues and ensuring prompt interventions when needed.