The nurse is reviewing the electrocardiogram (EKG) strip of a patient with wide QRS complexes. The nurse understands that the QRS complex represents


• Ventricular depolarization is represented by the QRS complex.

• Ventricular repolarization is represented by the T wave.

• Incorrect: Atrial repolarization is hidden within the QRS complex and cannot be distinguished.

• Incorrect: Purkinje fiber depolarization is not represented on the EKG.

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