UKKA — Clinical Practice Guideline: Management of Hyperkalaemia in Adults — updated July 2026

For hyperkalemia with toxic ECG changes, give an equivalent IV calcium dose promptly: 30 mL of 10% calcium gluconate over about 10 minutes for most patients or 10 mL of 10% calcium chloride over about 5 minutes in resuscitation/peri-arrest settings, with ECG reassessment and repeat calcium if changes persist or recur.