Final answer:
The average apical heart rate for a 2-month-old infant is approximately 120 beats per minute, with normal measurements for infants often ranging around 130 ± 5 beats/min.
Step-by-step explanation:
The average apical rate for a 2-month-old is approximately 120 beats per minute. This measurement can be understood in the context of pediatric vital signs which generally show higher heart rates in infants compared to adults. It is normal for an infant's heart rate to be quite rapid due to their smaller heart size and higher metabolic rate. For reference, an infant's pulse rate is often measured to be 130 ± 5 beats/min, which gives us an idea of the expected range for a healthy 2-month-old. The normal range for infants is wider, and health professionals use these ranges to monitor the well-being of the child.