Hypernatremia or hypernatraemia that is defined by an elevated sodium level in the blood. Hypernatremia is generally not caused by an excess of sodium, but rather by a relative deficit of free water in the body. For this reason, hypernatremia is often synonymous with the less precise term, dehydration. Water is lost from the body in a variety of w... Found on http://en.wikipedia.org/wiki/Hypernatremia
An excess of sodium in the blood...a short-lived condition since the body retains water until the concentration is back to normal...and the blood volume (as well as blood pressure) has increased.
Found on http://www.swsbm.com/ManualsMM/MedHerbGloss2.txt
Elevated blood sodium. Hypernatremia is uncommon in dogs and cats and most often is iatrogenic from the repetitive administration of high sodium containing solutions. Animals who have severe hypernatremia in excess of 170 meq/L show nervous system signs of depression progressing to coma. Found on http://www.vetmed.wsu.edu/glossary/glossary.asp
Hypernatremia: Elevated blood sodium. Sodium is the major positive ion (cation) in fluid outside of cells. The chemical notation for sodium is Na<SUP>+</SUP> (from natrium, a synonym for sodium). When combined with chloride (Cl), the resulting substance is table salt (NaCl). Excess sodium (such as from fast food hamburger and fries) is ... Found on http://www.medterms.com/script/main/art.asp?articlekey=3841