The P wave represents atrial depolarization. In a normal EKG, the P-wave precede

Question

The P wave represents atrial depolarization. In a normal EKG, the P-wave precedes the QRS complex. It looks like a small bump upwards from the baseline. The amplitude is normally 0.05 to 0.25mV (0.5 to 2.5 small boxes). Normal duration is 0.06-0.11 seconds (1.5 to 2.75 small boxes). The shape of a P-wave is usually smooth and rounded. P-wave questions: Are they present? . Do they occur regularly? . Is there one P-wave for each QRS complex? . Are the P-Waves smooth, rounded, and upright? . Do all P-Waves have similar shapes?

Explanation / Answer

1. Yes they are present. They represent atrial depolarization.

2. Yes they occur regularly in every PQRST compleX.

3. There is one P wave followed by QRS complex.

4. P waves are upright and smooth with rounded appearance.

5. Yes all P waves have similar shape.

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