title: [Hyponatremia: diagnostic approach].
abstract: Hyponatremia is the most common electrolyte disorder in hospitalized patients and may be associated with non negligible morbidity and mortality. Here we summerize its diagnostic approach based on the physiopathology. Assessment of volume status, measurement of plasma and urinary osmolality remain key steps in the management of this electrolyte disorder.
authors.affiliation: Université de Lausanne, 1015 Lausanne. aurelie.vuagniaux@unil.ch
authors.forename: Aurélie
authors.initials: A
authors.lastname: Vuagniaux
authors.forename: Peter
authors.initials: P
authors.lastname: Vollenweider
mesh_terms: D006801:Humans; D007010:Hyponatremia / Q000097:blood / Q000175:diagnosis* / Q000453:epidemiology / Q000628:therapy / Q000652:urine; D007297:Inpatients; D009994:Osmolar Concentration; D015995:Prevalence; D012964:Sodium / Q000097:blood* / Q000652:urine*; D014883:Water-Electrolyte Imbalance / Q000209:etiology
chemical_list: D012964:Sodium