title: Hyponatraemia in patients with head injury.
abstract: Three patients with head injury are described to illustrate certain features of the development, treatment and recovery of hyponatraemia. The hyponatraemia is initially due to water retention but true sodium depletion may develop because of an associated urine sodium loss. The mechanism of the latter is discussed.
mesh_terms: D000328:Adult; D006259:Craniocerebral Trauma / Q000150:complications*; D005110:Extracellular Space / Q000502:physiology; D005260:Female; D006801:Humans; D007010:Hyponatremia / Q000209:etiology*; D008297:Male; D012964:Sodium / Q000652:urine; D014508:Urea / Q000097:blood; D014667:Vasopressins / Q000378:metabolism
chemical_list: D014667:Vasopressins; D014508:Urea; D012964:Sodium