Posted: August 16th, 2017

When the nurse observes an ECG tracing on a cardiac monitor with a pattern in lead II and observes a bizarre, abnormal shape to the QRS complex, the nurse has likely observed which of the following ventricular dysrhythmias? Premature ventricular contraction A PVC is an impulse that starts in a ventricle before the next normal sinus impulse.

When the nurse observes an ECG tracing on a cardiac monitor with a pattern in lead II and observes a bizarre, abnormal shape to the QRS complex, the nurse has likely observed which of the following ventricular dysrhythmias?
Premature ventricular contraction
A PVC is an impulse that starts in a ventricle before the next normal sinus impulse.
a) Ventricular bigeminy
Ventricular bigeminy is a rhythm in which every other complex is a PVC.
b) Ventricular tachycardia
Ventricular tachycardia is defined as three or more PVCs in a row, occurring at a rate exceeding 100 beats per minute.
c) Ventricular fibrillation
Ventricular fibrillation is a rapid but disorganized ventricular rhythm that causes ineffective quivering of the ventricles.