case_images: PMC3221997_01
case_images: The patient's electrocardiogram shows a prominent U-wave (arrow) at a potassium concentration of 2.7 mM/l. The precordial leads matched the voltage criteria for left ventricular hypertrophy.
case_images: cc10040-1.jpg
case_images: PMC3221997_01_cc10040-1.jpg
case_images: F1
case_images: T wave amplitude, ST segment depression and the presence of a marked U wave (Figure 1), which were suggestive of severe hypokalemia. The precordial leads matched the voltage criteria for left ventricular hypertrophy.