Question

the nurse educator reviews electrocardiograms with a group of new nurses. the nurse educator explains the qrs complex reflects

1. atrial depolarization.
2. ventricular depolarization.
3. ventricular repolarization.
4. central venous pressure.

Explanation:

To solve this, we recall the components of an electrocardiogram (ECG). The P - wave represents atrial depolarization. The QRS complex is associated with ventricular depolarization (the electrical activity that causes the ventricles to contract). Ventricular repolarization is represented by the T - wave, and central venous pressure is not represented by the QRS complex. So the QRS complex reflects ventricular depolarization.

Answer:

1. Ventricular depolarization.