PART 10: Disorders of the Cardiovascular System SECTION 3 Disorders of Rhythm e30 Atlas of Cardiac Arrhythmias | Print | Close Window | < Previous | Next > | Figure e30-3 Figure e30-3 Sinus rhythm (P wave rate about 60/min) with 2:1 AV (second-degree) block causing marked bradycardia (ventricular rate of about 30/min). LVH is also present. |