“From symptoms and treatment, to management and medication—arm yourself with the knowledge to live well with diabetes.  The A1C test can be used to diagnose diabetes or help you know how your treatment plan is working by giving you a picture of your average blood glucose (blood sugar) over the past two to three months.  It can identify prediabetes, which raises your risk for diabetes. It can be used to diagnose diabetes.”

American Diabetes Association (https://diabetes.org/about-diabetes)