What pulse rate range is typical for infants aged 1 month to 12 months?

The typical pulse rate range for infants aged 1 month to 12 months is indeed between 80 to 140 beats per minute. This pulse rate is generally higher than that of older children and adults, reflecting the physiological needs of infants. During this stage of development, infants have a faster heart rate to support their growth and activity levels.

It's important to recognize that the heart rate can vary based on several factors, such as the infant's activity level, overall health, and whether they are at rest or crying. The specified range of 80 to 140 beats per minute encompasses the average resting rates seen in infants during this age group, making it the most appropriate choice for this question.

Other ranges provided do not accurately reflect typical values for this age group, as they are either too low or do not account for the natural variability seen in infant heart rates. Therefore, the choice that includes 80 to 140 beats per minute is the most aligned with clinical guidelines and developmental physiology for infants.