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ECG Case 071

Palpitations. Describe and interpret this ECG

TOP 100 ECG QUIZ LITFL 071

Describe and interpret this ECG

ECG ANSWER and INTERPRETATION

QRS alternans – due to AVNRT (i.e. electrical phenomenon), not pericardial effusion as normal voltages.


TOP 100 ECG Series


Emergency Physician in Prehospital and Retrieval Medicine in Sydney, Australia. He has a passion for ECG interpretation and medical education | ECG Library |

One comment

  1. Retrograde P’ can be seen positive in V1, negative in II, III, aVF.
    RP’ interval more than 70ms

    –> possible candidates can be Atrial tachycardia with a lower focus, Atypical AVNRT, Orthodromic AVRT, and even Junctional tachycardia.

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