Recognition
- • Flattened T waves
- • Prominent U waves
- • ST depression
- • Prolonged QT
Key findings
- • Risk of torsades, especially with QT-prolonging drugs
Clinical importance
- • Arrhythmia risk; replace concurrently with Mg
Management pearls
- • Oral KCl if mild
- • IV KCl 10 mmol/h peripheral, 20 mmol/h central (max)
- • Always check + replace Mg
Related in WardRound
