This usually requires a potassium level of 6.5 or greater and frequently appears as in "intraventricular conduction delay" or IVCD, which is ... of all hyperkalemic ECG changes within seconds ...
What are the stages of ECG changes of hyperkalemia ... This frequently appears as in "intraventricular conduction delay" or IVCD which is characterized by a widened QRS complex of > 120 ms ...