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Book

Hypernatremia

In: StatPearls [Internet]. Treasure Island (FL): StatPearls Publishing; 2025 Jan.
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Book

Hypernatremia

Bhavin Sonani et al.
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Excerpt

Sodium is a dominant cation in extracellular fluid and is necessary for the maintenance of intravascular volume. The human body maintains sodium and water homeostasis by concentrating the urine secondary to the action of antidiuretic hormone (ADH) and increased fluid intake by a powerful thirst response. These mechanisms to protect against developing hypernatremia are impaired in certain vulnerable populations, vasopressin deficiency, or unresponsiveness at the renal tubular level. Hypernatremia is defined as a serum sodium concentration of greater than 145 meq/L.

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Conflict of interest statement

Disclosure: Bhavin Sonani declares no relevant financial relationships with ineligible companies.

Disclosure: Srividya Naganathan declares no relevant financial relationships with ineligible companies.

Disclosure: Mohammed Al-Dhahir declares no relevant financial relationships with ineligible companies.

References

    1. Barma MA, Soiza RL, Donnan PT, McGilchrist MM, Frost H, Witham MD. Serum sodium level variability as a prognosticator in older adults. Scand J Clin Lab Invest. 2018 Nov-Dec;78(7-8):632-638. - PubMed
    1. Qian Q. Hypernatremia. Clin J Am Soc Nephrol. 2019 Mar 07;14(3):432-434. - PMC - PubMed
    1. Slaughter RJ, Watts M, Vale JA, Grieve JR, Schep LJ. The clinical toxicology of sodium hypochlorite. Clin Toxicol (Phila) 2019 May;57(5):303-311. - PubMed
    1. Rubin AN, Espiridion ED, Kattan M, Desmarais EC. Serotonin Syndrome with Atypical Hypernatremia. Cureus. 2018 Nov 19;10(11):e3616. - PMC - PubMed
    1. Yano T, Uchimura S, Nagahama M, Yonaha T, Taniguchi M, Tsuneyoshi I. Continuous hemodiafiltration for hypernatremia and a simple formula for stepwise regulation of the sodium concentration in a dialysate. J Clin Anesth. 2019 Aug;55:144-145. - PubMed

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