A blood sodium concentration of 166 mmol/L, which is higher than the normal reference value of 135~145 mmol/L, is abnormal and the cause needs to be clarified so that it can be corrected in time.
Blood sodium concentration of 166mmol/L is higher than the normal value, which can be diagnosed as hypernatremia, and may be caused with insufficient water intake, excessive water loss, and excessive sodium intake.
Prolonged inadequate water intake, fluid loss due to vomiting, diarrhea, and profuse sweating, inappropriate application of osmotic diuresis such as high sugar or mannitol. As well as the intake of excessive sodium-containing substances can cause elevated blood sodium concentrations.
When the blood sodium concentration is abnormally elevated there may be other causes, which need to be clarified under the guidance of a doctor so that they can be corrected in time.