Ace the Certified Pediatric Nurse (CPN) Exam 2025 – Leap into Your Nursing Adventure!

The correct answer indicates that the fastest rate of growth in the limbs occurs during the school-age years. During this period, children experience significant growth as they develop both physically and cognitively. This stage typically occurs between ages 6 to 12, where limbs grow more visibly, and children may engage in increasingly complex physical activities, reinforcing their muscle tone and overall strength.

During infancy, although there is rapid overall growth, the proportion of growth in limbs compared to the rest of the body is less prominent. In preschool years, growth is steady but not as accelerated in limb length relative to the school-age period. In adolescence, there is a growth spurt characterized by increased height and muscle mass; however, it is often attributed to a more generalized growth that isn't restricted solely to the limbs and can include changes in body composition as well. Therefore, within the context of specific limb growth, the school-age years stand out as the period of greatest increase.