What is the normal heart rate for infants aged 6-12 months?

The normal heart rate for infants aged 6-12 months typically ranges from 80 to 140 beats per minute (BPM). This range is established based on clinical observations and research on infant physiology. In this age group, heart rates tend to be higher than those of older children and adults due to their increased metabolic needs and activity levels.

This specific range reflects the higher resting heart rates common in infants, which are necessary for adequate circulation and oxygen delivery to developing tissues and organs. Maintaining a heart rate within this range is crucial for monitoring an infant's health and can indicate how well the cardiovascular system is functioning.

In contrast, other options suggest heart rate ranges that either fall below or above what is considered normal for this age group, which could lead to misinterpretation of an infant's health status if relied upon for clinical assessments.