EP Practice Lab · Case 5 of 12
The Earliest Point Is Noisy
A focal activation map highlights an 'earliest' point with poor electrogram quality.
Question
What is the best next 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.