reasons for high sodium in elderly
Certain conditions may cause an excess of sodium in the blood. Specific causes of hypernatremia include: 1  Dehydration or a loss of body fluids from prolonged vomiting, diarrhea, sweating or high fevers. 2  Dehydration from not drinking enough water.ypernatremia is an electrolyte imbalance and is indicated by a high level of sodium in the blood. The normal adult value for sodium is 136-145 mEq/L.