title: Nonoliguric acute renal failure associated with a low fractional excretion of sodium.
abstract: Measurement of the fractional excretion of sodium has been recommended as a useful clinical tool in evaluating acute renal failure. Six patients with nonoliguric acute renal failure had a fractional excretion of sodium less than or equal to 1.0%; these patients had severe liver dysfunction, which suggested a sodium-avid state. A review of the literature showed that in patients with other sodium-avid states (congestive heart failure, nephrotic syndrome, and burns) the fractional excretion of sodium was frequently less than or equal to 1.0%. The fractional excretion of sodium is thus a less useful diagnostic test in patients whose clinical state makes them sodium avid.
mesh_terms: D058186:Acute Kidney Injury / Q000097:blood / Q000150:complications / Q000652:urine*; D000328:Adult; D000368:Aged; D003404:Creatinine / Q000097:blood / Q000652:urine; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D009846:Oliguria / Q000209:etiology; D012964:Sodium / Q000097:blood / Q000652:urine*
chemical_list: D012964:Sodium; D003404:Creatinine