Typical ECG changes associated with hyperkalemia. 

→ Peaked T wave

→ Wide PR interval, Wide QRS duration, Peaked T wave

→ Loss of P wave, Sinusoidal wave

It is important to note that ECG changes may not correlate closely with serum potassium concentration or be useful in predicting outcomes. As such, a normal ECG should not necessarily be regarded as reassuring if elevated potassium concentration has been definitively observed. Such patients may still experience sudden hyperkalemic cardiac arrest episodes.



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