Hyperkalaemia with ECG changes — DipIMC MCQ
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Correct answer: D — Calcium gluconate 10% 30 mL IV over 10 minutes
ECG evidence of severe hyperkalaemia with bradycardia requires immediate IV calcium to stabilise the myocardium. Antiarrhythmics do not correct potassium-mediated conduction toxicity and may worsen instability. Definitive potassium shifting/removal follows according to local capability and urgent hospital care.
Reference: JRCALC Guidelines; Resuscitation Council UK Special circumstances 2025