What is the normal heart rate for infants aged 3-6 months?

For infants aged 3-6 months, the normal heart rate typically ranges from 80 to 160 beats per minute (BPM). This standard is established based on physiological developmental norms for that age group, where the heart rate is generally faster than in older children and adults. Infants have a naturally higher metabolic rate, which correlates with a higher heart rate. Understanding this normal range is crucial for healthcare providers to identify potential medical issues such as tachycardia or bradycardia, which could indicate underlying health problems.

In older infants or toddlers, the heart rate gradually decreases as their bodies continue to grow and develop. This information is vital for primary care paramedics as they often assess patients across different age ranges and need to apply the appropriate standards for each age group when evaluating vital signs.