Disorders of sodium and water balance.

Theresa R Harring, Nathan S Deal, Dick C Kuo

Journal: Emergency medicine clinics of North America 2014;32(2):379-401

PMID: 24766939

Full Text on Elsevier Science View on PubMed

Abstract

Dysnatremias occur simultaneously with disorders in water balance. The first priority is to correct dehydration; once the patient is euvolemic, the sodium level can be reassessed. In unstable patients with hyponatremia, the clinician should rapidly administer hypertonic saline. In unstable patients with hypernatremia, the clinician should administer isotonic intravenous fluid. In stable patients with either hyponatremia or hypernatremia, the clinician should aim for correction over 24 to 48 hours, with the maximal change in serum sodium between 8 to 12 mEq/L over the first 24 hours. This rate of correction decreases the chances of cerebral edema or osmotic demyelination syndrome.

Address: Section of Emergency Medicine, Ben Taub General Hospital, Baylor College of Medicine, Emergency Center, 1504 Taub Loop, Room EC 61, Houston, TX 77030, USA. Electronic address: [email protected].; Section of Emergency Medicine, Ben Taub General Hospital, Baylor College of Medicine, Emergency Center, 1504 Taub Loop, Room EC 61, Houston, TX 77030, USA.; Section of Emergency Medicine, Ben Taub General Hospital, Baylor College of Medicine, Emergency Center, 1504 Taub Loop, Room EC 61, Houston, TX 77030, USA. Electronic address: [email protected].

DOI: 10.1016/j.emc.2014.01.001

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MeSH Terms: Humans, Hypernatremia, Hyponatremia, Sodium, Water-Electrolyte Balance