what a1c means diabetes

The A1C test, also known as the hemoglobin A1C or HbA1c test, measures your average blood sugar levels over the past 2 to 3 months. It is used to diagnose diabetes and prediabetes, as well as to monitor how well you are managing your diabetes.

Here are the A1C ranges used for diagnosis:

• Normal: Below 5.7%
• Prediabetes: 5.7% to 6.4%
• Diabetes: 6.5% or above

If your A1C level is 6.5% or higher, it indicates diabetes. This means your blood sugar levels have been consistently high over the past few months. Managing diabetes typically involves lifestyle changes, medication, and regular monitoring of blood sugar levels.

For more detailed information, you can refer to the CDC's A1C Test page.