A normal healthy child has a height of 100 cm and weight of 16 kg. What is his most likely age: September 2012
**Core Concept**
The question is testing the child's growth parameters, specifically height and weight, against standard growth charts to estimate their age. The World Health Organization (WHO) growth charts are commonly used for this purpose.
**Why the Correct Answer is Right**
To determine the child's age, we need to refer to the WHO growth charts. According to these charts, a child with a height of 100 cm and a weight of 16 kg falls within the 50th percentile for height and weight at around 4-5 years of age. This is because the child's growth parameters are consistent with normal growth patterns for their age group.
**Why Each Wrong Option is Incorrect**
* **Option A:** This option is incorrect because the child's height and weight are not consistent with those of a toddler (1-3 years old).
* **Option B:** This option is incorrect because the child's height and weight are not consistent with those of an infant (0-12 months old).
* **Option C:** This option is incorrect because the child's height and weight are not consistent with those of a pre-schooler (3-5 years old), although it is close, but not the best match.
* **Option D:** This option is incorrect because the child's height and weight are not consistent with those of a school-age child (6-12 years old).
**Clinical Pearl / High-Yield Fact**
When assessing a child's growth, it's essential to plot their height and weight on a growth chart to identify any deviations from the expected growth pattern.
**Correct Answer: C. 4-5 years of age.**