What do idioventricular rhythm p waves look like

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Multiple Choice

What do idioventricular rhythm p waves look like

Explanation:
Idioventricular rhythm is paced from the ventricles, so atrial activity doesn’t drive the rhythm. Because the ventricles take over, there isn’t a consistent atrial depolarization linked to each ventricular beat, so P waves are not seen in relation to the QRS complexes. On a tracing you typically don’t observe distinct P waves preceding every QRS, making P waves effectively absent. This is why the best description is that the P waves are absent. If P waves were present, they would either be dissociated and not aligned with the QRS, or they wouldn’t be reliably identifiable as part of the ventricular rhythm, but the common teaching focus is that P waves are not present in this rhythm.

Idioventricular rhythm is paced from the ventricles, so atrial activity doesn’t drive the rhythm. Because the ventricles take over, there isn’t a consistent atrial depolarization linked to each ventricular beat, so P waves are not seen in relation to the QRS complexes. On a tracing you typically don’t observe distinct P waves preceding every QRS, making P waves effectively absent. This is why the best description is that the P waves are absent. If P waves were present, they would either be dissociated and not aligned with the QRS, or they wouldn’t be reliably identifiable as part of the ventricular rhythm, but the common teaching focus is that P waves are not present in this rhythm.

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