A normal electrocardiogram (ECG) displays a positive deflection of the P wave and represents which of the following events?

A. Atrial repolarization

B. Atrial depolarization

C. Ventricular repolarization

D. Ventricular depolarization

E. Atrioventricular depolarization

Reveal the answer

B. Atrial depolarization

Content adapted from ClinicalKey Student question bank

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