Glycemia is considered normal when the glucose concentration in the blood is <100mg/dl (fasting) or <140 mg/dl (2 hours after glucose ingestion). The diagnosis of diabetes is based on blood test. The Oral Glucose Tolerance Test (OGTT) consist in the absorption of 75g of sugar and following the glycemic control after 2 hours. To distinguish between type I or type II diabetes, the most common diagnostic methods are based on specific antibodies, C-peptide measurement and a clinical diagnosis.
[Last update: July 2018]