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What electrolyte imbalance is most common in elderly people?

Hyponatremia, or low blood sodium levels, is the most common electrolyte disorder in older adults, with some studies finding it in nearly 50% of hospitalized geriatric patients. The higher prevalence of this condition in the elderly is due to a combination of physiological changes, multiple chronic diseases, and frequent use of certain medications. Understanding this condition is crucial for managing health outcomes and preventing serious complications.