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| treatment = P.o. or i.v. supplementation | | treatment = P.o. or i.v. supplementation | ||
| complications = Ventricular arrhythmia, rhabdomyolysis | | complications = Ventricular arrhythmia, rhabdomyolysis | ||
}}'''Hypokalaemia''' is a disorder of potassium homeostasis characterised by low levels of potassium (<3.5 mmol/L). It's a relatively | }}'''Hypokalaemia''' is a disorder of potassium homeostasis characterised by low levels of potassium (<3.5 mmol/L). It's a relatively uncommon electrolyte abnormality. It's most frequently caused by loop diuretics, gastrointestinal loss, or hyperaldosteronism. Most common symptoms include muscle weakness and constipation, as well as ECG changes. Management involves treating the underlying cause and p.i. or i.v. supplementation. Hypokalaemia can be lethal due to rhabdomyolysis or ventricular arrhythmia. Hypokalaemia is less common than [[hyperkalaemia]]. | ||
== Grading of severity == | == Grading of severity == | ||
{| class="wikitable" | {| class="wikitable" |