<unk>  is an electrolyte disturbance consisting of an elevated sodium level in the blood. It is defined as a serum sodium concentration exceeding 145 mEq/L. This is a relatively common problem particularly among young children, older adults, and hospitalized/critically ill who depend upon others to control their water intake.
Hypernatremia
Hyponatremia
Pseudohyponatremia
Alkalosis
Hypoosmolality
Hyperchloremic acidosis
Hypercarbia
Acidosis