While evaluating the diagnosis of atrial fibrillation, all of the following EKG findings are typically present EXCEPT:

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Atrial fibrillation is diagnosed on an EKG when an irregular heart beat is suspected. Characteristic findings are the absence of P waves, with unorganized electrical activity in their place, and irregular R-R intervals due to irregular conduction of impulses to the ventricles.

While Evaluating the Diagnosis of Atrial Fibrillation, All of the Following