It should mean fasting blood glucose 5.3mmol/l, which is generally not considered high. Normal fasting blood glucose values range from 3.9 to 6.1 mmol/l, so a fasting blood glucose of 5.3 mmol/l is not considered high. Fasting blood glucose is greater than or equal to 6.1mmol/L but less than 7.0mmol/L and 2 hours after the sugar load blood glucose is less than 7.8mmol/L, suggesting impaired fasting blood glucose. A diagnosis of diabetes mellitus may be considered when fasting blood glucose is greater than or equal to 7.0 mmol/l or 2-hour postprandial blood glucose is greater than 11.1 mmol/l and typical diabetic symptoms are present. If it is determined that there are blood glucose abnormalities, it is recommended that patients seek timely endocrine consultation and be guided by a specialized physician to avoid delays in diagnosis and treatment.