Interpret the following rhythm:

A) Idioventricular rhythm
B) Accelerated idioventricular rhythm
C) Ventricular tachycardia
D) Ventricular fibrillation

Question

Interpret the following rhythm:

A) Idioventricular rhythm 
B) Accelerated idioventricular rhythm 
C) Ventricular tachycardia 
D) Ventricular fibrillation

Quizplus · Accepted Answer

Idioventricular rhythm is an escape rhythm that is generated by the Purkinje fibers.This rhythm emerges only when the SA and AV nodes fail to initiate an impulse.The Purkinje fibers are capable of an intrinsic rate of 20 to 40 beats per minute.Because this last pacemaker is located in the ventricles,the QRS complex appears wide and bizarre with a slow rate.No P waves are present.If the rate is between 40 and 100 beats per minute,this rhythm is called accelerated idioventricular rhythm (AIVR).Ventricular tachycardia (VT)is a rapid,life-threatening dysrhythmia originating from a single ectopic focus in the ventricles.It is characterized by at least three PVCs in a row.VT occurs at a rate greater than 100 beats per minute,but the rate is usually around 150 beats per minute and may be up to 250 beats per minute.VF produces a wavy baseline without a PQRST complex.Because a loose lead or electrical interference can produce a waveform similar to VF,it is always important to immediately assess the patient for pulse and consciousness.

Interpret the Following Rhythm