The A1C test result is reported as a percentage. The A1C test measures the amount of hemoglobin with attached glucose and reflects your average blood glucose levels over the past 3 months. The higher the glucose level in your bloodstream, the more glucose will attach to the hemoglobin. Glucose attaches to or binds with hemoglobin in your blood cells, and the A1C test is based on this attachment of glucose to hemoglobin. Hemoglobin is the part of a red blood cell that carries oxygen to the cells. The A1C test is sometimes called the hemoglobin A1C, HbA1c, glycated hemoglobin, or glycohemoglobin test. An A1C test is a blood test that reflects your average blood glucose levels over the past 3 months. 1 The A1C test is also the primary test used for diabetes management. The A1C test can be used to diagnose type 2 diabetes and prediabetes. The A1C test is a blood test that provides information about your average levels of blood glucose, also called blood sugar, over the past 3 months. Clinical Trials for the A1C Test and Diabetes.

Will the A1C test show short-term changes in blood glucose levels?.

How does A1C relate to estimated average glucose?.

How is the A1C test used after diagnosis of diabetes?.

Why do diabetes blood test results vary?.

Can the A1C test result in a different diagnosis than the blood glucose tests?.

Can other blood glucose tests be used to diagnose type 2 diabetes and prediabetes?.

How is the A1C test used to diagnose type 2 diabetes and prediabetes?.

Diabetes pilot coudnt get a1c below 9.0