The telling sign that the rhythmOften refers to a discernible pattern in time or distance between QRS complexes and/or P waves. is a paced rhythmA cardiac rhythm that is generated by current provided by an artificial pacemaker; vertical pacemaker spikes precede the waves. An electronic pacemaker, or just pacemaker, delivers electrical current to the heart to stimulate depolarization. Pacemaker leads may connect with ventricular...; since the pacemakerAn electronic pulse generator that stimulates depolarization of the atria and/or the ventricles. 1. Six Second ECG Guidebook (2012), T Barill, p. 201 spike is vertical, virtually no time was spent – this suggests strongly that the spike was initiated artificially and not organically (within the heart); note that a pacemaker spike must be followed by a wave – a spike and an immediate wave is called a captured beat – spike without an immediate wave is called loss of capturePacer spikes should always have a waveform immediately afterwards. Failure to stimulate a depolarization is called loss of capture. An electronic pacemaker, or just pacemaker, delivers electrical current to the heart to stimulate depolarization. Pacemaker leads may connect with ventricular....

1. Six Second ECG GuidebookA Practice Guide to Basic and 12 Lead ECG Interpretation, written by Tracy Barill, 2012 Introduction The ability to correctly interpret an electrocardiogram (ECG), be it a simple six second strip or a 12 lead ECG, is a vital skill... (2012), T Barill, p. 201