What is an A1C?

• A1C, also known as HbA1c or hemoglobin A1C is a measure of average blood sugar levels over the last 3 months. 
• When there are high levels of sugar floating around in the blood, some of it "sticks" to the hemoglobin and when a blood sample is taken, it measures the amount of glucose in the blood. A1C is typically measured as a percent.
  • <5.7 Normal
  • 5.7-6.4 Pre-diabetes
  • >6.5 Diabetes

http://www.diabetes.org/diabetes-basics/diagnosis/?loc=db-slabnav