ECG has minimal diagnostic value in diagnosing burns but plays a role in diagnosing concurrent conduction abnormalities and monitoring side effects of sever and electrical weapons . Electrocardiogram of a patient with acute burn injury may show prolonged QT and sinus tachycardia .Fatal cardiac arrest by electrical weapons .

In patients with acute burn injuries sinus tachycardia and a prolonged QT interval were the most common ECG abnormalities. There was no correlation between the extent of burn injuries and observed ECG abnormalities. No patient had a life threatening arrhythmia, and all patients had a good outcome.^[1]abnormal electrocardiogram (nonspecific ST-T wave changes most commonly) are at increased risk for cardiac arrhythmias and should be observed until the ECG normalizes^[2]

fatal cardiac arrest by electrical weapons^{[3][4][5][6][7]}