ECG Question #26


The nurse is reviewing the following electrocardiogram (ECG):

The nurse interprets the ECG as:


  1. Ventricular bigeminy
    • Rationale:
  2. Ventricular trigeminy
    • Rationale:
  3. Ventricular quadrigeminy
    • Rationale:
  4. Unifocal PVC
    • Rationale:



Premature ventricular contraction (PVC), which occurs every 3rd beat, is called trigeminy. Trigeminy may indicate an underlying cause such as oxygen needs, electrolyte imbalance (potassium and magnesium), an ischemic event, overdose, digoxin toxicity, or theophylline toxicity. Symptomatic trigeminy may be treated with amiodarone if hemodynamically compromised, or beta-adrenergic blockers. This rhythm does not demonstrate ventricular bigeminy, ventricular quadrigeminy, or unifocal PVCs.

Learning Outcomes

Test Taking Tip

Video Rationale