The ECG findings include: Peaked T waves best seen in the precordial leads, shortened QT interval and, at times, ST segment depression CLINICAL PEARL: If you see an IVCD, think of hyperkalemia.

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 ...