In a person with ventricular tachycardia, extra systoles appear in
Correct Answer: P wave
Description: Extrasystoles are essentially extra beats, or contractions, which occur when there is electrical discharge from somewhere in the hea other than the SA node. Atrial extrasystoles may also be of little consequence but are exacerbated by alcohol and caffeine The P wave indicates atrial depolarizationp. Multiple abnormalities of the P wave are discussed in detail in ECG Reviews and Criteria. Atrial enlargements can widen the P wave or increase the P wave amplitude. Ectopic atrial rhythms( ventricular tachycardia) dampens of the normal morphology of P waves Ref Harrison 20th edition pg 1456
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