A life-threatening complication of diabetes mellitus marked by extreme hyperglycemia, hyperosmolarity, and dehydration without significant ketosis.

Displacement of brain tissue due to increased ICP, such as uncal or central herniation, leading to life-threatening neurological deterioration.

A disorder characterized by deficiency of antidiuretic hormone or renal resistance to it, resulting in excessive dilute urine output and risk of severe dehydrat

A rare adrenal tumor that secretes excessive catecholamines, causing episodic hypertension, tachycardia, and diaphoresis.

An acute deficiency of cortisol and aldosterone leading to hypotension, electrolyte imbalance, and shock—requiring urgent management.

An abnormal extension response (arms and legs extended, head arched backward) indicating severe damage to the brainstem, often associated with poor prognosis.