What is this test?
A1C is a blood test taken by a finger prick that measures your blood sugar levels over the last few months. This test is done to find out if a person has diabetes or prediabetes, or to see how well a person with diabetes is controlling their blood sugar.
Who needs this test?
Most people with diabetes should have this test at least twice a year. You may need this test to check for prediabetes or diabetes.
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