EP Practice Lab · Case 1 of 12
Narrow-Complex Tachycardia: Start With Description
Practice describing a regular narrow-complex tachycardia before jumping to mechanism.
Question
What is the best first interpretation step?
Practice Lab principle
Describe what you observe first. Then connect the observation to mechanism, troubleshooting, or next-step reasoning. Avoid jumping from one clue to a final diagnosis.
Educational scope: All cases are synthetic and simplified. They are designed for conceptual practice, not clinical decision-making or independent procedural guidance.