The A1C test measures blood sugar management over 2 or 3 months. To estimate an A1C, clinicians may use an estimated average glucose (eAG) to help people with diabetes better understand how this multi ...

A high A1C level means your average blood sugar has been too high over the past few months. This can be a sign of diabetes or prediabetes and increases the risk of serious health problems like heart ...

Blood sugar checks are essential for the diagnosis and treatment of every form of diabetes. “Glucose monitoring is critical for preventing short-term and long-term complications of diabetes,” says ...

If you're at risk for diabetes or have noticed your glucose readings creeping up, your doctor may check your A1C as part of your routine blood work. An A1C test measures your average blood sugar ...