The A1C does not provide a measure
of glycemic variability or hypoglycemia.
For patients prone to glycemic variability,
especially type 1 diabetic patients or
type 2 diabetic patients with severe insulin
deficiency, glycemic control is best
evaluated by the combination of results
S34 Position Statement Diabetes Care Volume 38, Supplement 1, January 2015
from self-monitoring and the A1C. The
A1C may also confirm the accuracy of
the patient’s meter (or the patient’s reported
SMBG results) and the adequacy
of the SMBG testing schedule.