When one branch of the AV node conducts the impulse forward and the other branch of the AV node conducts it backward, this is called ____ tachycardia.

Question

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When one branch of the AV node conducts the impulse forward and the other branch of the AV node conducts it backward, it is called antidromic tachycardia. This type of tachycardia occurs when there is a re-entry circuit within the AV node and the impulse travels in a retrograde direction through one branch and in an anterograde direction through the other branch.

When One Branch of the AV Node Conducts the Impulse