An A1C test is a blood draw used to diagnose and manage prediabetes and diabetes. Learn more about who needs this test and ...

This hemoglobin A1C results analyzer will help you understand ... We do not track which lab tests you analyze and we do not ...

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 ...