Diagnosis and Treatment of Hypernatremia

Publication date: Available online 4 March 2016
Source:Best Practice & Research Clinical Endocrinology & Metabolism
Author(s): Saif A. Muhsin, David B. Mount
Hypernatremia is defined as a serum sodium level above 145 mmol/L. It is a frequently encountered electrolyte disturbance in the hospital setting, with an unappreciated high mortality. Understanding hypernatremia requires a comprehension of body fluid compartments, as well as concepts of the preservation of normal body water balance. The human body maintains a normal osmolality between 280 and 295 mOsm/kg via Arginine Vasopressin (AVP), thirst, and the renal response to AVP; dysfunction of all three of these factors can cause hypernatremia. We review new developments in the pathophysiology of hypernatremia, in addition to the differential diagnosis and management of this important electrolyte disorder.



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