Answer 36

36.  Choice B is the correct answer.  Atrial flutter is characterized by a regular saw tooth pattern between QRS complexes because the ectopic focus is coming from the same area in the atria.  Atrial fibrillation has an irregular baseline because the ectopic focus comes from multiple areas in the atria.  Paroxysmal atrial tachycardia is narrow complex tachycardia with a rate over 150 beats per minute.  Wandering atrial pacemaker the P wave is in different shapes and positions because the pacemaker is coming from different areas.