ECG library
Severe hyperkalemia: the widening QRS
advancedDialysis missed twice. Potassium 8.1. The QRS is stretching before your eyes.
25 mm/s · 10 mm/mV · synthetic tracing
100%
Calipers:2000 ms50.0 small boxes30 bpm if R-RDrag the orange markers. One small box = 40 ms.
Key findings
- Peaked T + wide QRS + vanishing P
- Bradycardia
- Sine-wave trajectory
Learning points
- The ECG is the triage of hyperkalemia: width means calcium now, before the potassium result is even repeated.
- The sequence is peaking, PR growth, P loss, QRS widening, sine wave, arrest, at any potassium slope.
Connected