Consistent sinus rhythm No clinically significant conduction disorders PR interval between 120 and 210 milliseconds (msec), inclusive Heart rate (HR) greater than or equal to 50 beats per minute (bpm) and less than or equal to 100 bpm QRS interval less than or equal to 110 msec QT intervals that can be consistently analyzed (T wave amplitude 2 mm or greater, lack of artifact [noise] and excessive baseline wandering, without any form of bundle branch block).