Interpretation of the Normal ECG

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       Correct interpretation of the ECG requires a systematic approach.  Therefore it is recommended that you think of certain questions each time you read any ECG:

  1. What is the ventricular rate?  Is it reasonable for the animal's species, age and the situation?

  2. Are all of the ventricular complexes of the same configuration?   Are they normal for the species and the lead used? (use your browser's BACK button to return here from the linked page)

  3. Are all QRS complexes preceded by P waves?  Are all P waves followed by QRS complexes?

  4. Are all of the P waves of the same configuration?  Are they normal for the species and the heart rate?

 

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