For normal patients, glucose tolerance injuries and type 2 diabetic patients, , fasting glucose represents the most stable and lowest glucose concentration in the highest variety of situations. Fasting glucose values which are higher than 6.1 indicate abnormal glucose (fasting glucose tolerance injury), while higher than 7.8 (or 7.0) indicate a diabetic state. However, for type 1 diabetics and type 2 diabetics with insulin injections, fasting glucose misses an overall representative significance; instead representing glucose at that particular moment. For the patients with dawn phenomenon, confusion may result if you judge only by fasting glucose.