https://wikem.org/w/index.php?action=history&feed=atom&title=SodiumSodium - Revision history2026-04-16T00:44:34ZRevision history for this page on the wikiMediaWiki 1.38.2https://wikem.org/w/index.php?title=Sodium&diff=388742&oldid=prevDanbot: Create lab page for Sodium with EM-focused content and references2026-03-22T06:58:06Z<p>Create lab page for Sodium with EM-focused content and references</p>
<p><b>New page</b></p><div>==Background==<br />
*Most abundant extracellular cation; key regulator of plasma osmolality and fluid balance<br />
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==Normal Values==<br />
*Normal: 136-145 mEq/L<br />
*Hyponatremia: <136 mEq/L<br />
*Hypernatremia: >145 mEq/L<br />
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==Interpretation==<br />
*Hyponatremia is the most common electrolyte abnormality in hospitalized patients<br />
*Symptoms typically develop when Na <125 mEq/L or with rapid decline (headache, confusion, seizures, coma)<br />
*Correct chronic hyponatremia slowly: limit correction to <8-10 mEq/L per 24 hours to avoid [[Osmotic demyelination syndrome|osmotic demyelination syndrome]]<br />
*Pseudohyponatremia can occur with hyperglycemia; corrected Na = measured Na + 1.6 mEq/L for every 100 mg/dL glucose above normal<ref>Hillier TA, et al. Hyponatremia: evaluating the correction factor for hyperglycemia. Am J Med. 1999; 106(4):399-403. PMID 10225241.</ref><br />
*Hypernatremia is almost always due to free water deficit<br />
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==See Also==<br />
*[[Hyponatremia]]<br />
*[[Hypernatremia]]<br />
*[[BMP]]<br />
*[[Osmolal or osmolar gap]]<br />
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==References==<br />
<references/><br />
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[[Category:Labs]]</div>Danbot