Medically reviewed by Allison Herries, RDN An A1C test is used to diagnose and monitor diabetes by measuring the body's average blood sugar level over the past three months. A high hemoglobin A1C, or ...

Ronald Kahn, M.D. President and Director, Joslin Diabetes Center What is the A1c blood test ... the protein in red blood cells, hemoglobin. And this measures really on average how is your blood ...

The requirement that the subject be fasting at the time the blood is drawn is a considerable inconvenience. While our ability to measure glucose has improved, inherent biological variability can ...

Testing your blood sugar gives you important information about how well your type 2 diabetes management and treatment plan is working. It lets you see how factors such as food, exercise ...

Before addressing glucose and A1C, it is important to consider the factors that impact the results of any blood test. While laboratory medicine journals have devoted some discussion to the sources ...

Your A1C measures the amount of sugar in your red blood cells and gives an average of your blood sugar over a three-month period. Why is that important? After all, when you have diabetes ...

The Hemoglobin A1C test, also called the HbA1c, is a blood test that measures your average blood sugar level over the past 2-3 months. Mandel explains that it's primarily used to diagnose and ...