Hypernatremia, blood osmotic pressure during treatment with NaCl 3% solution 2/83 patients (2.4%) had hypernatremia (Na> 150 mmol), 2 patients increased blood osmotic pressure, at the time of hyponatremia and after treatment: 334mosmol / kg, 342 mosmol / kg, respectively). The reason is that at the beginning of treatment, we did not have the result of blood osmotic pressure, and patients with diabetes.