EKG Practice Test Free Trial Advertisements Welcome to your EKG Practice Test Free TrialThis tracing is an example of: Ventricular tachycardia Atrial fibrillation Ventricular fibrillation Atrial tachycardia Using the 6 sec tracing above, choose the best answer that describes the rhythm. Atrial flutter Atrial fibrillation Ventricular fibrillation Atrial Tachycardia The course of blood flow through the heart and lungs is referred to as: Systemic circulation Pulmonary circulation Aortic circulation. Mesenteric circulation Time's upAdvertisements Leave a Reply Cancel replyCommentEnter your name or username to commentEnter your email address to commentEnter your website URL (optional) Save my name, email, and website in this browser for the next time I comment.