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Hypervolemic HypernatremiaAka: Hypernatremia with Increased Total Body Sodium

Pathophysiology
1. Increased Total Body Water (TBW)
2. Increased Total Body Sodium
3. Increased Extracellular Fluid
Causes
1. Excessive intravenous sodium administration
  1. Hypertonic saline administration (3% saline)
  2. Sodium Bicarbonate
  3. Replacing hypotonic insensible loss with 0.9% saline
2. Mineralocorticoid excess
3. Excessive Salt intake
Management
1. Discontinue hypertonic sodium administration
2. Administer Diuretics

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This page was written by Scott Moses, MD. This page was last revised before 5/10/08, prior to consistent tracking of revision date. This page was last published on 6/1/2008. Please send comments and questions to the editor. Contact information may be found on the page About the Family Practice Notebook. These pages are best viewed with Microsoft Internet Explorer 6.0.