a1c test definition
SEARCH. The A1C test (also known as HbA1c, hemoglobin A1C, glycosylated hemoglobin, and glycated hemoglobin) is a blood test commonly used to see if a patient is suffering from Type 1 or Type 2 diabetes.It also measures how well-managed your diabetes is at present. higher A1C level means a lower body' control of your blood sugar. Once you're diagnosed with diabetes, the test can be used to monitor your treatment. Blood drawing risks are slight and include lightheadedness or excessive bleeding.