Diabetes blood tests:
• Fasting blood glucose level. Diabetes is diagnosed if it is higher than 126 mg/dL two different times.
• Hemoglobin A1c (A1C) test. Diabetes is diagnosed if the test result is 6.5% or higher.
• Oral glucose tolDiabetes screening is recommended for:
• Overweight children who have other risk factors for diabetes, starting at age 10 and repeated every 2 years
• Overweight adults (BMI of 25 or higher) who have other risk factors
• Adults starting at age 45 every 3 years, or at a younger age if the person has risk factors
erance test. Diabetes is diagnosed if the glucose level is higher than 200 mg/dL 2 hours after drinking a special sugar drink.