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Hyponatraemia: Difference between revisions
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'''Hyponatraemia''' is a disorder of [[sodium]] homeostasis characterised by low levels of sodium (< 135 or 136 mmol/L). It's the most common electrolyte abnormality, affecting 3-10% of patients in the emergency department. It's usually mild and is self-limiting, but severe hyponatraemia is lethal. | '''Hyponatraemia''' is a disorder of [[sodium]] homeostasis characterised by low levels of sodium (< 135 or 136 mmol/L). It's the most common electrolyte abnormality, affecting 3-10% of patients in the emergency department. It's usually mild and is self-limiting, but severe hyponatraemia is lethal. | ||
{{Infobox medical condition | {{Infobox medical condition | ||
| name = Hyponatraemia | | name = Hyponatraemia | ||
| | | definition = Serum sodium level < 136 mmol/L | ||
| synonym = Hyponatremia | | synonym = Hyponatremia | ||
| | | most common causes = Heart failure, liver failure, dehydration, and SIADH | ||
| symptoms = Anything from headache and mild altered mental status to coma | | symptoms = Anything from headache and mild altered mental status to coma | ||
| treatment = Water restriction, sodium repletion | | treatment = Water restriction, sodium repletion | ||