The hemoglobin A1C (HbA1C), or A1C, test measures your average blood glucose for the past two to three months using percentage values. Hemoglobin is a protein in red blood cells (RBCs) that glucose ...

C. Ronald Kahn, M.D. President and Director, Joslin Diabetes Center What is the A1c blood test? The hemoglobin A1C test is a measure of what we call long term glucose control. The way this works ...

Your A1C level can be falsely elevated due to certain medications or health conditions like anemia, among other reasons. The hemoglobin A1C test is a useful tool to help monitor glucose control or ...

The A1C level test can give false or inaccurate results in some people. Doctors say your A1C level can be falsely elevated ...