The A1C test, also called glycated hemoglobin, glycosylated hemoglobin, hemoglobin A1C and HbA1c, is a common blood test used to diagnose type 1 and type 2 diabetes. A person without diabetes produces enough insulin to maintain an A1C between 4 percent and 6 percent.
From the A1C test result, you can know your average blood sugar level for the past two to three months.
||What It Means
|Less than 5.7%
||Normal (minimal Risk for Type 2 Diabetes)
|5.7% to 6.4%
||“Prediabetes,” meaning at risk for developing type 2 diabetes
|6.5% or greater
The higher your A1C level, the poorer your blood sugar control, and the higher your risk of diabetes complications.