The A1C test measures blood sugar management over 2 or 3 months. To estimate an A1C, clinicians may use an estimated average glucose (eAG) to help people with diabetes better understand how this multi ...
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What is the A1C test?

The A1C test measures your average blood sugar levels over two to three months. If you are 35 or older, you should get screened for diabetes every three years. The A1C test can also be used to ...