Hemoglobin A1C is a blood test that measures the average amount of glucose (sugar) in your blood over the last three months. “When blood sugar levels stay elevated over time, it causes A1C to increase ...
The A1C test is more than just a number; it's a powerful tool that provides a long-term look at your blood sugar levels. A high A1C can be a sign of prediabetes or diabetes, and it can be a wake-up ...
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 ...