A mother brings in her 3-year-old son for a well-child check-up. She is concerned that he seems different in size from all of the other preschool boys. He was the product of an uneventful pregnancy and vaginal delivery. He has hit all of his developmental milestones on time. On examination he is 26 lbs (11.8 kg) and is 35 inches (89 cm) tall. Otherwise his examination is unremarkable. You give the correct education for his age and then discuss his size. For his age, what are his growth chart percentiles?

Question

Quizplus · Accepted Answer

According to the growth charts, this child is less than the fifth percentile for both height and weight, indicating that he is small and light for his age. This can be from a growth hormone deficiency but is usually due to genetic factors (such as short, light parents). It is most important to follow the trend of growth. It is more significant if this child was previously at the 50th percentile for height and weight than if he has always been about the same percentile and following a line parallel to expected growth lines.

A Mother Brings in Her 3-Year-Old Son for a Well-Child