- Basics of ECG Interpretation11 Topics
- Normal ECG Parameters
- ECG Interpretation of Chamber Enlargement4 Topics
- Dysrhythmias
- Bradycardia
- Heart Block3 Topics
- Sick Sinus Syndrome
- Tachycardia8 Topics
- Hyperkalemia
- Myocardial Hypoxia/Ischemia
- Low Amplitude QRS Complex
- Wide QRS Complex
- Bundle Branch Block
- Differentials for ECG Abnormalities
Lesson 1, Topic 2
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PR Interval
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The PR interval is the electrocardiographic representation of the delay in electrical activation of the ventricles after sino-atrial nodal discharge. This interval is mainly a result of slow conduction through the atrio-ventricular node.
