MCQ – 95200

Identify the ECG for the diagnosis:

Correct Answer » C Explanation

Ventricular tachycardia (VT) is a type of rapid heart rate that starts from improper electrical activity in the ventricles of the heart. It is a potentially life-threatening condition that can lead to more serious cardiac issues, including ventricular fibrillation and sudden cardiac death. 

This tracing shows a regular, very fast, wide-complex tachycardia, which is diagnostic of VT until proven otherwise.

Key ECG features visible in the image

1. Rate

   • Very rapid rhythm (≈ 180–220/min)

2. QRS complexes

   • Broad and bizarre (>120 ms)

   • Uniform morphology across leads → monomorphic VT

3. Rhythm

   • Regular

   • No clear P waves preceding each QRS

4. Axis & morphology

   • Extreme axis deviation

   • Precordial leads show concordance (all large complexes in same direction) → classic for VT