What Are the Symptoms of Low Sodium Levels in Elderly People?

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Elderly patients with low sodium levels are usually asymptomatic, although headaches, nausea, confusion and respiratory arrest show up in severe conditions, according to Kugler and Hustead for the American Family Physician journal from the American Academy of Family Physicians. If the condition develops quickly, it may cause muscle twitching and irritability, while chronic cases may cause lethargy and malaise.