Hyponatremia in the emergency department

Gregor Lindner, Christoph Schwarz, Michael Haidinger, Svenja Ravioli
American Journal of Emergency Medicine 2022, 60: 1-8
Hyponatremia, defined as a serum sodium <135 mmol/L, is frequently encountered in patients presenting to the emergency department. Symptoms are often unspecific and include a recent history of falls, weakness and vertigo. Common causes of hyponatremia include diuretics, heart failure as well as Syndrome of Inappropriate Antidiuresis (SIAD) and correct diagnosis can be challenging. Emergency treatment of hyponatremia should be guided by presence of symptoms and focus on distinguishing between acute and chronic hyponatremia.

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Jeanell Guenther

Has Fig. 1 error been corrected yet? The graphic indicates “rise” in [Na+] rather than drop in last 48 hours. See decision square under first NO in graphic.


Jesus Rodriguez



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