What is Hyperglycemia?

Hyperglycemia, or high blood glucose (sugar), is a serious health problem for those with diabetes. Hyperglycemia develops when there is too much sugar in the blood. In people with diabetes, there are two specific types of hyperglycemia that occur:

• Fasting hyperglycemia is defined as a blood sugar greater than 90-130 mg/dL (milligrams per deciliter) after fasting for at least 8 hours. 
  
  
• Postprandial or after-meal hyperglycemia is defined as a blood sugar usually greater than 180 mg/dL. In people without diabetes postprandial or post-meal sugars rarely go over 140 mg/dL but occasionally, after a large meal, a 1-2 hour post-meal glucose level can reach 180 mg/dL. Consistently elevated high post-meal glucose levels can be an indicator that a person is at high risk for developing type 2 diabetes