Hyperkalaemia on ECG
pathogenesis
reduction in resting membrane potential
ecg changes
- Peaked T waves
- P wave widening/flattening, PR prolongation
- Bradyarrhythmias: sinus bradycardia, high-grade AV block with slow junctional and ventricular escape rhythms, slow AF
- Conduction blocks (bundle branch block, fascicular blocks)
- QRS widening with bizarre QRS morphology
clinical presentation
is nonspecific naturally but classically you hear about
- paresthesia, muscle weakness