Question 1

What is the difference between WHO and CDC charts?

Accepted Answer

WHO charts describe optimal growth under ideal conditions. CDC charts describe actual growth in the US. WHO charts are recommended for children 0-59 months globally.

Question 2

How should growth be assessed in preterm infants?

Accepted Answer

Use corrected age until at least 24 months. Specialised preterm charts are used from birth to term-equivalent age.

Question 3

What is considered abnormal growth velocity?

Accepted Answer

Growth velocity below the 3rd percentile or sustained deceleration crossing more than two percentile lines requires investigation.

Question 4

How is BMI percentile classified in children?

Accepted Answer

Underweight (less than 5th), healthy (5th-85th), overweight (85th-95th), and obese (at least 95th percentile).