text: An ECG may be helpful in the diagnosis of<unk><unk> . Findings on an ECG suggestive of of<unk><unk>  include: Prolongation or shortening of the QRS interval, increased QT and QT dispersion intervals, increased or decreased heart rate, prolongation of the PR interval, enlarged P-wave, ST-segment depression, Cardiac arrhythmia, Heart block.
option_0: Peripheral neuropathy electrocardiogram
option_1: Carotid artery stenosis electrocardiogram
option_2: Skin cancer electrocardiogram
option_3: Coronary heart disease electrocardiogram
option_4: Encephalopathy electrocardiogram
option_5: Bartter syndrome physical examination
option_6: Cardiac amyloidosis physical examination
option_7: Brugada syndrome physical examination