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Supraventricular Tachycardia - Junctional Dysrhythmias.

Supraventricular Tachycardia

  • Supraventricular tachycardia occurs when the heart rhythm occurs as a result of electrical impulses initiated above the ventricles at a rate of 150 - 250 bpm or more.
  • What will remain will be a normal appearing and measuring QRS complex depolarizing at a rapid rate.
  • As a result of the rapid rate, the cardiac complexes will be very close to one another.
  • The T waves of the previous complex will cover the P wave of the next complex. P waves will be entirely buried making it impossible to describe their morphology and measure the PR interval.
junctional ecg image 13

Practice Strip

junctional ecg image 14

Analyze this tracing using the five steps of rhythm analysis.

Show Answer
  • Rhythm: Regular
  • Rate: 200
  • P wave: Buried
  • PR interval: Unable to measure
  • QRS: 0.06 sec
  • Interpretation: Supraventricular Tachycardia

pv:0 | adjsruns:0
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