Glucose comes from the food you eat and is also made in your liver and muscles. Your blood carries the glucose to all the cells in your body. Insulin is a chemical (a hormone) made by the pancreas. The pancreas releases insulin into the blood. Insulin helps the glucose from food get into your cells. If your body doesn't make enough insulin, or if the insulin doesn't work the way it should, glucose can't get into your cells. It stays in your blood instead. Your blood glucose level then gets too high, causing pre-diabetes or diabetes.

You may need to check your urine if you're sick or if your blood glucose is over 240. A urine test will tell you if you have ketones in your urine. Your body makes ketones when there isn't enough insulin in your blood. Ketones can make you very sick. Call your doctor right away if you find moderate or large amounts of ketones, along with high blood glucose levels, when you do a urine test. You may have a serious condition called ketoacidosis. If it isn't treated, it can cause death. Signs of ketoacidosis are vomiting, weakness, fast breathing, and a sweet smell on the breath. Ketoacidosis is more likely to develop in people with type 1 diabetes. You can buy strips for testing ketones at a drug store. Your doctor or diabetes educator will show you how to use them.

Another test for blood glucose, the A1C, also called the hemoglobin A1C test, shows what your overall blood glucose was for the past 3 months. It shows how much glucose is sticking to your red blood cells. The doctor does this test to see what your blood glucose is most of the time. Have this test done at least twice a year. Ask your doctor what your A1C test showed. A result of under 7 usually means that your diabetes treatment is working well and your blood glucose is under control. If your A1C is 8 or above, your blood glucose may be too high. You'll then have a greater risk of having diabetes problems, like kidney damage. You may need a change in your meal plan, physical activity plan, or diabetes medicine.A1C Results Target for most people under 7.

Time to change my diabetes care plan is when my A1C Results are 8 or above. Talk with your doctor about what your target should be. Even if your A1C is higher than your target, remember that every step toward your goal helps reduce your risk of diabetes problems.

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