A Diabetes (HbA1c) blood test is used to diagnose diabetes and assess sugar control by identifying blood sugar levels over the previous 8 - 10 weeks.
This test includes (expand individual tests for details):
HbA1c is your average blood glucose (sugar) levels for the last two to three months. High levels mean you have too much sugar in your blood. This can lead to diabetes complications, like serious problems with your eyes and feet.