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Clinical features

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Hypokalaemia is often asymptomatic. Symptoms generally do not become present until serum potassium is below 3.0 mEq/L (1,2)

Possible signs and symptoms of hypokalaemia include:

  • cardiac
    • dysrhythmias
    • conduction defects
  • lethargy/confusion
  • skeletal muscle
    • weakness/rhabdomyolysis
    • flaccid paralysis
    • fasciculations and tetany: extensor muscle spasms of hands and feet
  • paraesthesiae of hands and feet
  • gastrointestinal
    • ileus
    • nausea
    • vomiting
    • abdominal distension
  • renal
    • polyuria (1)

Reference:

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