Which age groups have the highest prevalence of hyponatremia?

Updated: Aug 24, 2020
  • Author: Kartik Shah, MD; Chief Editor: Romesh Khardori, MD, PhD, FACP  more...
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Hyponatremia is most common in the extremes of age; these groups are less able to experience and express thirst and less able to regulate fluid intake autonomously. Specific settings that have been known to pose particular risk include the following:

  • Infants fed tap water in an effort to treat symptoms of gastroenteritis

  • Infants fed dilute formula in attempt to ration

  • Elderly patients with diminished sense of thirst, especially when physical infirmity limits independent access to food and drink [9, 10]

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