SCREENING & DIAGNOSIS
PEDIATRIC SCREENING FOR TYPE 2 DIABETES
- BMI ≥ 85% for age and gender
Plus any of the following:
- Family history of Type 2 diabetes in first- or second-degree relative
- Higher risk ethnic group (Native American, African American, Latino, Asian American, Pacific Islander)
- Signs of insulin resistance or metabolic syndrome (acanthosis nigricans, hypertension, dyslipidemia, polycystic ovary syndrome or small-for-gestational-age birth weight)
- Maternal history of diabetes or gestational diabetes during child’s gestation
Screen every 3 years
ADULT SCREENING FOR TYPE 2 DIABETES
- BMI ≥ 25 kg/m² or ≥ 23 kg/m² in Asian Americans
Plus any of the following:
- Physical inactivity
- First-degree relative with diabetes
- Higher risk ethnic group (African American, Latino, Native American, Asian American, Pacific Islander)
- Hypertension ≥ 130/80 mmHg or on therapy for hypertension
- HDL < 35 mg/dL and/or triglycerides > 250 mg/dL
- Women with polycystic ovary syndrome
- Signs of insulin resistance or metabolic syndrome (severe obesity, acanthosis nigricans)
- History of cardiovascular disease
Screen at least every 3 years if testing is normal. Screen annually if meets prediabetes criteria. Screen at least every 3 years and lifelong for women diagnosed with Gestational Diabetes. Without any of the above criteria, testing should begin at 35 years of age. HIV positivity is also a criteria for testing.
DIABETES MELLITUS DIAGNOSTIC CRITERIA
Diabetes
- A1c ≥ 6.5%*
- Fasting blood glucose ≥ 126 mg/dL*
- 2-hour blood glucose ≥ 200 mg/dL with an oral glucose tolerance using 75 g glucose*
- Classic symptoms of hyperglycemia with a random blood glucose ≥ 200 mg/dL
*Without hyperglycemic symptoms, results should be confirmed with repeat testing
Prediabetes
- A1c ≥ 5.7-6.4%
- Fasting blood glucose ≥ 100-125 mg/dL
- 2-hour blood glucose ≥ 140-199 mg/dL with an oral glucose tolerance using 75 g glucose
For screening recommendations and diagnosis of diabetes occurring during pregnancy, please refer to Gestational Diabetes under Types of Diabetes.