Posted: June 6th, 2017

When assessing an ECG, the nurse knows that the P-R interval represents the time it takes for the:

When assessing an ECG, the nurse knows that the P-R interval represents the time it takes for the:

1. Impulse to begin atrial contraction
2. Impulse to transverse the atria to the AV node
3. SA node to discharge the impulse to begin atrial depolarization
4. Impulse to travel to the ventricles

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