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Hyperosmolar hyperglycemic nonketotic coma

D W Pope1, D Dansky

  • 1Department of Emergency Medicine, Northwestern University Hospital, Chicago, Illinois.

Summary

Hyperosmolar hyperglycemic nonketotic coma (HHNC) is a severe condition marked by very high blood sugar levels and osmolality without ketoacidosis. It affects up to 20% of severe hyperglycemia cases and is often misdiagnosed due to its non-specific symptoms. Treatment involves aggressive intravenous fluids, potassium, and insulin, along with monitoring central venous pressure and urine output. HHNC is frequently linked to other serious diseases, which must be treated alongside the syndrome. The absence of acidosis is a key diagnostic feature. Early detection and proper management are crucial to improving patient outcomes.

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