Not a cause of hypernatremia
Adipsic diabetes insipidus
Decreased insensible losses
Nephrogenic diabetes insipidus
Carcinoid syndrome
Ans. is 'b' i.e., Decreased insensible losses Major causes of hypernatremia Unreplaced water loss (which requires an impairment in either thirst or access to water) Insensible and sweat losses Gastrointestinal losses Central or nephrogenic diabetes insipidus Osmotic diuresis Glucose in uncontrolled diabetes mellitus Urea in high-protein tube feedings Mannitol Hypothalamic lesions impairing thirst or osmoreceptor function Primary hypodipsia Reset osmostat in mineralocoicoid excess Water loss into cells Severe exercise or seizures Sodioum overload Intake or administration of hypeonic sodium solutions