Hyponatremia (Low Sodium) Topic Guide

Hyponatremia (Low Sodium) Hyponatremia (Low Sodium): Low levels of sodium in the blood is referred to as hyponatremia. Causes of hyponatremia include: pneumonia, lung cancer, brain tumors, kidney or heart failure, liver disease, and dehydration. Some of the symptoms of hyponatremia include: headache, nausea and vomiting, confusion, and lethargy. In acute hyponatremia seizures, coma, and even death may occur. Treatment of hyponatremia is generally to balance the electrolytes and raise the sodium levels in the blood.

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