ECG Changes of Hyperkalaemia

Hyperkalemia

Classic teaching of the chronological ECG changes of hyperkalemia include:

  1. Peaked T waves
  2. Prolongation of PR interval
  3. Widening QRS Complex
  4. Loss of P wave
  5. “Sine Wave”
  6. Asystole

The order of ECG changes of hyperkalemia have been defined in the experimental setting, but no uniform order has been documented in animal models (Ettinger, Regan, and Oldewurtel 1974)*. The relationship between serum potassium and cardiac manifestations is even less clear in the clinical setting (Acker et al. 1998)*.

EMKF

The Emergency Medicine Kenya (EMK) Foundation is a not-for-profit organization registered in Kenya in 2015 that aims to ensure timely, accessible and quality lifesaving emergency care in Kenya.