What is the normal heart rate range for infants?

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Multiple Choice

What is the normal heart rate range for infants?

Explanation:
Infants have a higher resting heart rate than older children and adults because their bodies operate with a higher metabolic rate and their stroke volume is smaller. This makes heart rate the primary driver of cardiac output in early life. A typical resting range for a healthy infant under one year is about 80 to 160 beats per minute, reflecting normal variability with sleep, feeding, crying, and fever. Values outside this band at rest could indicate an abnormal condition, while the other ranges either miss the usual resting band for infants or align more with different ages or states (like sleep vs. activity).

Infants have a higher resting heart rate than older children and adults because their bodies operate with a higher metabolic rate and their stroke volume is smaller. This makes heart rate the primary driver of cardiac output in early life. A typical resting range for a healthy infant under one year is about 80 to 160 beats per minute, reflecting normal variability with sleep, feeding, crying, and fever. Values outside this band at rest could indicate an abnormal condition, while the other ranges either miss the usual resting band for infants or align more with different ages or states (like sleep vs. activity).

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