Why are the electrode tabs in the wrong position

Improper operation. The problem is due to the operator to place the electrode pads in an abnormal position, the upper and lower will not be more than half a ribcage, ≥ one ribcage is a clear error, even if the creation of a false-positive "turnaround" is not worth exploring. Electrocardiographic monitoring of the electrode sheet is to replace the ordinary electrocardiogram suction cups, electrode clips, can be used for a long time to detect the invention of the human body electrocardiogram.