Recognition
- • Peaked T waves
- • Prolonged PR
- • Wide QRS
- • Loss of P
- • Sine wave (pre-arrest)
Key findings
- • Changes correlate roughly with K⁺ severity
Clinical importance
- • Risk of VF / asystole
Management pearls
- • Calcium gluconate 10 mL 10% IV — stabilise membrane
- • Insulin 10 U + 25 g glucose
- • Salbutamol nebs
- • Sodium bicarbonate if acidotic
- • Definitive: dialysis
Related in WardRound
