A1C is a lab test that shows the average level of blood sugar (glucose) over the previous 3 months. It shows how well you are controlling your diabetes.
HbA1C test; Glycated hemoglobin test; Glycohemoglobin test; Hemoglobin A1C; Diabetes - A1C; Diabetic - A1C
How the Test is Performed
A blood sample is needed. Two methods are available:
- Blood drawn from a vein. This is done at a lab.
- Finger stick. This can be done in your health care provider's office. Or you may be prescribed a kit that you can use at home.