EP Practice Lab · Case 6 of 12
Pacing Artifact Without QRS
A pacing artifact is visible, but the expected ventricular response is not obvious.
Question
Which concept is most relevant?
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.