EP Practice Lab · Case 11 of 12
Stimulus → Response Reasoning
Programmed stimulation is delivered and one premature stimulus does not depolarize the intended tissue.
Question
What is the first concept to consider?
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.