The HbA1c test is a blood test that provides information about your average levels of blood glucose, also called blood sugar, over the past 3 months. The HbA1c test can be used to diagnose type 2 diabetes and prediabetes.1 The HbA1c test is also the primary test used for diabetes management. The HbA1c test is sometimes called the hemoglobin A1C,…
