Based on results of this study, the American Diabetes Association (ADA) recommends routine glycated hemoglobin testing to measure long-term control of blood sugar.
The glycated (glycosylated) hemoglobin test is used to monitor the effectiveness of diabetes treatment.
Glycated hemoglobin is a test that indicates how much glucose was in a person's blood during a two- to three-month window beginning about four weeks prior to sampling.
The normal range for glycated hemoglobin measured as HbA 1c is 3 to 6 percent.
The ADA recommends that glycated hemoglobin testing be performed during a person's first diabetes evaluation, again after treatment is begun and glucose levels are stabilized, then repeated semiannually.