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Korean J Nephrol. 2006 Jul;25(4):675-679. Korean. Case Report.
Jang JS , Choi HM , Hyun YY , Kwon BS , Park JY , Kim JH , Lee JW , Lee JE , Kwon YJ , Pyo HJ .
Division of Nephrology, College of Medicine, Korea University, Seoul, Korea.

We report a case of chronic hypernatremia caused by excessive salt intake as folk remedies for three months. The patient had chronic tubulointerstitial nephritis (CTIN), but without documented cognitive or psychiatric disorders. She presented with severe hypernatremia 189 mmol/L and general weakness. Fluid therapy was done initially with isotonic and then with 0.45% hypotonic saline until serum sodium level reached to 157 mmol/L. Finally hemodialysis was supplemented to achieve normal serum sodium level, and she recovered without any sequelae. This report might be the first case of chronic hypernatremia due to voluntary ingestion of excessive salt in an adult patient with CTIN but without cognitive or psychiatric disorders.

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