Glycatedhemoglobin, or short HbA1C, is a form of hemoglobin attached to glucose. Testing for HbA1C concentration gives an indication about the three-month average plasmaglucose浓度和定期执行with type 1 andtype 2 diabetes. It is a measure ofblood glucoselevels over the past six to eight weeks and therefore reflects how welldiabetesis controlled.