Hypokalæmia: Helmet-Like TU Waves
Report:
Sinus rhythm 96/min
TU waves c/c hypokalæmia
Comment:
The appearance of rounded TU waves in the inferior leads is very characteristic, often leading to a spot diagnosis. This ECG is made easier by the helpful separation of T and U waves in the precordial leads. It was not the case on admission (Fig 87a), when there would have been even money on long QT interval, especially on thioridazine. Her potassium was 2.2 mEq/L. There were no arrhythmias.
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