<prompt> Answer this question truthfullyWhat are the QRS axis and voltage?  <response>: <reason> The QRS amplitute i.e. the sum of the postive and negative parts in the limb leads does not exceed 0.5 mV 5 mm OR is no more than 1.0 mV 1 cm in the chest leads.Cardiomyopathy, especially infiltrative cardiomyopathy, such as in amyloidosis Increased resistance between the heart and the electrodes: pneumothorax, obesity, pericardial fluid tamponade, pleural effusion Myocarditis pericarditis Heart tranplantation, especially during acute or chronic rejection Wrong settings on the ECG apparatus sensitivity should be at 10 mmmV 