Measurement of body mass index (BMI) is an effective way to screen for obesity and is an important part of the routine health evaluation of all children. A fasting blood sugar test is recommended for obese children 10 years and older who have a BMI above the 85th percentile for their age and sex and 2 high-risk criteria for diabetes (eg, positive family history or signs of insulin resistance). Patients with a BMI at the 85th percentile or higher also require screening for other comorbidities. Such screening includes measurement of waist circumference, blood pressure, lipid levels (specifically, levels of high- and lowdensity lipoprotein cholesterol and triglycerides, as well as total cholesterol), and liver transaminase levels.
