title: Severe hyponatremia in an eighty-one year old female.
mesh_terms: D000368:Aged; D003937:Diagnosis, Differential; D005260:Female; D006801:Humans; D007010:Hyponatremia / Q000209:etiology / Q000473:pathology*; D007177:Inappropriate ADH Syndrome / Q000150:complications / Q000473:pathology*; D014882:Water-Electrolyte Balance