Tuesday 11 December 2012

Hypernatraemia and hyponatraemia

Hypernatraemia
  • Too much water loss in comparison to sodium loss (or no sodium change at all)
  • Nephrogenic/pituitary diabetes insipidus
  • Nausea, vomiting, fever, confusion
  • Replace over 48 hours

Hyponatraemia
  • Too little water loss in comparison to sodium loss (or no sodium change at all)
  • SIADH
  • Cerebral oedema causes headache, confusion, convulsions, coma
  • Restrict water
  • Vasopressin antagonists in the future?

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