Hypernatremia is a typical electrolyte issue that is characterized as an ascent in serum sodium focus to a worth surpassing 145 mmol/L. It is carefully characterized as a hyperosmolar condition brought about by a lessening in all out body water (TBW) comparative with electrolyte content. Hypernatremia is a "water issue," not an issue of sodium homeostasis. Community acquired hypernatremia for the most part happens in older individuals who are intellectually and genuinely disabled, regularly with an intense disease. Patients who create hypernatremia over the span of hospitalization have an age conveyance like that of the general clinic populace.

In both patient gatherings, hypernatremia is brought about by hindered thirst as well as confined access to water, frequently exacerbated by pathologic conditions with expanded liquid misfortune. The improvement of hyperosmolality from the water misfortune can prompt neuronal cell shrinkage and resultant cerebrum injury. Loss of volume can prompt circulatory issues (eg, tachycardia, hypotension). Intense indicative hypernatremia, characterized as hypernatremia happening in an archived time of under 24 hours, ought to be adjusted quickly. Constant hypernatremia (>48 h), notwithstanding, ought to be rectified all the more gradually because of the dangers of cerebral edema during treatment.