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 ...

The blood test, called PromarkerD, has been previously validated for predicting renal decline up to four years in advance in type 2 diabetes. The results were published in the journal Diagnostics ...