PMC3361784_01
(a) ECG at the time of presentation, At the time of presentation when serum potassium is 1.82 mmol.l, Electrocardiogram revealed heart rate of 75/min with prolongation of PR interval, ST segment depression, T wave inversion and prominent U wave typical feature of Hypokalemic (b) ECG shows prominent U wave and T wave inversion, MID precordiallead of patient shows T wave inversion and prominent U waves
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F1
His nerve conduction velocity (NCV)/electromyography (EMG) was completely normal, ECG showed prominent U waves [Figure 1], his dengue NS1 antigen ELISA as well as dengue IgM antibody test were positive.