Munson Health
 
Hyponatremia-Adult

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by Frisch L

(Dilutional Hyponatremia; Euvolemic Hyponatremia; Hypervolemic Hyponatremia; Hypovolemic Hyponatremia)

 

Causes

Hyponatremia may be caused by:
  • Syndrome of inappropriate antidiuretic hormone secretion (SIADH)—Antidiuretic hormone signals the kidneys to absorb more water, reducing urine output. In SIADH, the mechanism that stops antidiuretic hormone from collecting water is impaired. This impairment results in excess water in the body.
  • Sweating—In people with cystic fibrosis excess sodium is excreted through sweat. It may also occur in people with severe burns when electrolytes and fluids are not replaced.
Kidney Failure
Kidney failure stones
Kidney failure is one condition that may cause hyponatremia.
Copyright © Nucleus Medical Media, Inc.
 

RESOURCES

American Society forNutriton
http://www.nutrition.org

National Institute of Diabetes and Digestive and Kidney Diseases
http://www.niddk.nih.gov

 

CANADIAN RESOURCES

The College of Family Physicians of Canada
http://www.cfpc.ca

Health Canada
http://www.hc-sc.gc.ca

 

References


Almond CS, Shin AY, et al. Hyponatremia among runners in the Boston Marathon. N Engl J Med. 2005;352(15):1550-1556.


Ayus JC, Arieff AI. Glycine-induced hypo-osmolar hyponatremia. Arch Intern Med. 1997;157(2):223-226.


Elhassan EA, Schrier RW. Hyponatremia: diagnosis, complications, and management including V2 receptor antagonists. Curr Opin Nephrol Hypertens. 2011;20(2):161-168.


Hyponatremia. EBSCO DynaMed website. Available at: https://dynamed.ebscohost.com/about/about-us. Updated November 8, 2012. Accessed November 15, 2013.


Mittal R, Sheftel H, et al. Management of hyponatraemia. Br J Hosp Med (Lond). 2011;72(2):M22-5.


Peng K. Management of hyponatremia. Am Fam Physician.  2004;69(10):2387-2394.


Syndrome of inappropriate antidiuretic hormone secretion (SIADH). EBSCO DynaMed website. Available at: https://dynamed.ebscohost.com/about/about-us. Updated December 15, 2012. Accessed November 15, 2013.

 

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