PART 10: Disorders of the Cardiovascular System SECTION 3 Disorders of Rhythm e30 Atlas of Cardiac Arrhythmias | Print | Close Window | < Previous | Next > | Figure e30-16 Figure e30-16 Wide complex tachycardia. Atrial flutter with 2:1 AV conduction (block) and LBBB, not to be mistaken for VT. Typical atrial flutter activity is clearly present in lead II at a cycle rate of about 320/min, with an effective ventricular rate of about 160/min. |