Hyperglycemia

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Basics

• Summary
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• Diagnosis and Tests

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• Related Issues

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Research

• Clinical Trials
• Journal Articles

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Summary

Hyperglycemia means high blood sugar or glucose. Glucose comes from the foods you eat. Insulin is a hormone that moves glucose into your cells to give them energy. Hyperglycemia happens when your body doesn't make enough insulin or can't use it the right way.

People with diabetes can get hyperglycemia from not eating the right foods or not taking medicines correctly. Other problems that can raise blood sugar include infections, certain medicines, hormone imbalances, or severe illnesses.

Start Here

• Hyperglycemia (High Blood Glucose) (American Diabetes Association)
• Hyperglycemia in Diabetes (Mayo Foundation for Medical Education and Research) Also in Spanish
• What Is High Blood Glucose? (Joslin Diabetes Center)

Diagnosis and Tests

• A1C: MedlinePlus Health Topic (National Library of Medicine) Also in Spanish
• Blood Glucose Test (National Library of Medicine) Also in Spanish

Related Issues

• Diabetic Hyperosmolar Syndrome (Mayo Foundation for Medical Education and Research) Also in Spanish
• Diabetic Ketoacidosis (Mayo Foundation for Medical Education and Research)
• DKA (Ketoacidosis) and Ketones (American Diabetes Association)
• Hyperglycemia (High Blood Sugar) in the Hospital (Hormone Health Network)

Clinical Trials

• ClinicalTrials.gov: Hyperglycemia (National Institutes of Health)

Journal Articles References and abstracts from MEDLINE/PubMed (National Library of Medicine)

• Article: COVID-19 in a country with a very high prevalence of diabetes:...
• Article: Association between Hb A1c and Severity of COVID-19 Patients.
• Article: Hyperglycemia in pregnancy: sleep alterations, comorbidities and pharmacotherapy.
• Hyperglycemia -- see more articles

Find an Expert

• American Diabetes Association
• National Institute of Diabetes and Digestive and Kidney Diseases

Children

• Hyperglycemia and Diabetic Ketoacidosis (Nemours Foundation)
• When Blood Sugar is Too High (Nemours Foundation) Also in Spanish

Teenagers

• When Blood Sugar Is Too High (Nemours Foundation) Also in Spanish

Patient Handouts

• Diabetic hyperglycemic hyperosmolar syndrome (Medical Encyclopedia) Also in Spanish
• Diabetic ketoacidosis (Medical Encyclopedia) Also in Spanish
• High blood sugar - self-care (Medical Encyclopedia) Also in Spanish
• Hyperglycemia - infants (Medical Encyclopedia) Also in Spanish
• Ketones urine test (Medical Encyclopedia) Also in Spanish