Diabetic ketoacidosis

Diabetic ketoacidosis is an acute complication of diabetes in which insulin deficiency drives ketone accumulation and metabolic acidosis, often with high blood glucose and dehydration.

Insulin deficiency: A state in which insulin supply is insufficient for the body's metabolic needs. It removes insulin’s restraint on fat breakdown and ketone production.
Diabetic ketoacidosis diagnosis: The clinical and laboratory assessment used to identify diabetic ketoacidosis. Diagnosis combines ketones and acidosis with glucose and clinical findings.
Hyperosmolar hyperglycemic state: An acute diabetes complication marked by extreme hyperglycemia and hyperosmolality, usually without substantial ketoacidosis. It shares dehydration and hyperglycemia but typically has far less ketone-driven acidosis.
Cerebral edema: Excess fluid accumulation in brain tissue that can raise intracranial pressure. This rare, serious complication occurs especially in children and requires urgent recognition.
Type 1 diabetes: An autoimmune disease that destroys pancreatic beta cells and causes an absolute insulin deficiency. Its loss of insulin production creates a major risk for ketoacidosis.
Lipolysis: The enzymatic breakdown of stored triglycerides into fatty acids and glycerol. Insulin deficiency accelerates fatty-acid release from adipose tissue.
Blood beta-hydroxybutyrate: A laboratory measurement of the ketone body beta-hydroxybutyrate in blood. It directly tracks the predominant circulating ketone in many acute cases.
Euglycemic diabetic ketoacidosis: Diabetic ketoacidosis with substantial ketonemia and acidosis despite glucose that is not markedly elevated. It shows why glucose alone cannot exclude this emergency.
Acute kidney injury: A rapid decline in kidney function that disrupts fluid, electrolyte, and waste regulation. Severe dehydration can reduce kidney perfusion and impair filtration.
Type 2 diabetes: A chronic disease involving insulin resistance and progressive failure of insulin secretion. Severe insulin deficiency during stress can also produce ketoacidosis in type 2 diabetes.

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