Elevated blood sugar level

1. Hyperglycemia means that fasting blood glucose is higher than the upper limit of 7.3mmol / L (130mg / dl), and blood glucose is higher than the renal glucose threshold of 9.0mmol / L (160mg / dl). 2. Short-term hyperglycemia has no serious damage to the human body, such as when under stress or emotionally excited, highly stressed, or when eating a large amount of sugar at a time. Subsequently, blood glucose levels will gradually return to normal. 3. If blood sugar cannot be lowered, persistently high blood sugar will develop into diabetes.