Carolinas Core Concepts Core Concepts in EM; a repository for Carolinas lecture summaries.



Nancy Gritter, MD
  • 100mmol of 3% NS will change serum sodium by about 2mmol/L.
  • Mortality of severe hyponatremia approaches 48% if left untreated due to cerebral edema; this outweighs the risk of central pontine myelinolysis. Indications for immediate correction are seizures, severe obtundation/coma, or focal neurologic findings.
  • Rule of 6's: if emergent, may correct up to 6mmol in the first 6 hours - but nobody should correct the sodium until the next day afterwards.  For safety, don't correct as an inpatient by more than 6 mmol in 24 hours.
    • Am J Kidney Dz 56;774-779, 2010
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