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How does high blood sugar relate to type 2 diabetes?

Dr. Jeanne Morrison, PhD
Family Practitioner

High blood sugar, also called hyperglycemia or high blood glucose, is a common occurrence in type 2 diabetes. Several factors can lead to high blood sugar, including improper medication doses, irregular diet, inactivity, stress, and other factors. If left untreated, high blood sugar can lead to severe complications. Talk to your doctor about what you can do to prevent high blood sugar.

Compared with people with type 1 diabetes, people with type 2 diabetes have less dramatic swings in blood glucose levels. But they can sustain high blood glucose levels over prolonged periods without even knowing it. This can wear on the body and may cause diabetes complications. By monitoring your blood glucose levels regularly, you can guard against chronic hyperglycemia.

Acute hyperglycemia can occur in people with type 2 diabetes and is life threatening. Hyperglycemia in people with type 2 diabetes does not usually produce ketones. But blood glucose levels can soar to over 600 mg/dl and even as high as 1,000 mg/dl. This sometimes happens before diabetes is diagnosed. Extreme hyperglycemia can cause a coma.

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Important: This content reflects information from various individuals and organizations and may offer alternative or opposing points of view. It should not be used for medical advice, diagnosis or treatment. As always, you should consult with your healthcare provider about your specific health needs.