The A1C test, also known as an HbA1C, hemoglobin A1C, glycated hemoglobin, or glycosylated hemoglobin test, is a blood test used to diagnose and monitor diabetes. It shows your average blood sugar ...

With prediabetes on the rise, a simple A1C blood test reveals exactly where your blood sugar sits and whether you're heading toward type 2 diabetes before you have a diagnosis. The catch? Financial ...