What is the correct interpretation of the P wave in an electrocardiogram?
The P wave represents the graphical representation of all the electrical...
What is the correct interpretation of the P wave in an electrocardiogram?
The P wave represents the graphical representation of all the electrical forces that occur during atrial depolarization. The presence of positive P waves in lead II, anterograde, and in a 1:1 relationship with the QRS complexes are the three characteristics that define a sinus rhythm. Changes in the duration and voltage of the P wave of the ECG may suggest enlargement (fundamentally dilation) of the atria. The duration and voltage of the P wave can vary significantly depending on the weight of the animal and the degree of training to which it is subjected.
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