A glycated hemoglobin test is the best and most common blood test for diagnosing type 1 diabetes. This test measures how much blood sugar is attached to the oxygen-carrying red blood cells or hemoglobin. The higher one's blood sugar, the more sugar-coated hemoglobin. After the diagnosis, a person with diabetes will have to visit their doctor to have their blood sugar monitored regularly. Treatments for type 1 diabetes include insulin injections, diet and nutrition, and exercise.

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