The ECG and Electrolyte Abnormalities

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INTRODUCTION

• Various electrolyte disorders can result in abnormalities to the resting ECG ranging to clinically significant arrhythmias
• Hyperkalaemia is the commonest abnormality that can lead to significant arrhythymias
• General factors that predict deterioration are conduction abnormalities, QT changes and frequent ectopic beats
• Treatment of arrhythmias typically follow ACLS guidelines in combination with correction of the abnormality

Resting ECG Changes

Arrhythmias