What is the expected pulse range for a baby aged 1 week to 3 months?

For an infant aged 1 week to 3 months, the expected pulse range is 80 to 180 beats per minute. This range is considered normal because newborns and young infants have higher heart rates than older children and adults. The elevated pulse rate reflects the high metabolic demands and growth rates during this early stage of life, as well as the need for rapid oxygen exchange to support their developing bodies.

This normal range accounts for variability due to the infant's activity level, sleep states, and temperament. Understanding this can help nurses and caregivers monitor an infant's cardiovascular status effectively. It is crucial for healthcare providers to recognize what is considered a normal pulse for this age group to ensure timely and appropriate care if any abnormalities arise.