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 ...

1 This committee suggested that glycated hemoglobin be adopted as the test to define diabetes and other states of hyperglycemia. Results from a new study by Selvin and colleagues 2 support earlier ...