ECG Question #13


The nurse places the client on a monitor and interprets the findings after analyzing the following electrocardiogram (ECG):

Based on the nurse’s interpretation, the ECG monitor reveals:


  1. Premature ventricular contractions (PVCs)
    • Rationale:
  2. Ventricular tachycardia
    • Rationale:
  3. Sick sinus syndrome
    • Rationale:
  4. Paroxysmal atrial tachycardia
    • Rationale:



The rhythm is sinus with a distinct P wave that initiates a normal QRS followed by a premature QRS complex that is wider and results from increased irritability within the ventricles. They may be unifocal or may occur in frequent patterns. Potassium levels should be evaluated since hypokalemia may cause PVCs. This rhythm is not consistent with ventricular tachycardia, sick sinus syndrome, or paroxysmal atrial tachycardia.

Learning Outcomes

Test Taking Tip

Video Rationale