PART 10: Disorders of the Cardiovascular System SECTION 3 Disorders of Rhythm e30 Atlas of Cardiac Arrhythmias | Print | Close Window | < Previous | Next > | Figure e30-10 Figure e30-10 Atrial tachycardia with atrial rate of about 200/min (note lead V1), 2:1 AV block (conduction), and one premature ventricular complex. Also present: LVH with intraventricular conduction delay and slow precordial R-wave progression (cannot rule out prior anterior MI). |