KROK 1 2007 – Question 96 · KROK (Medicine) · Pathophysiology

A patient has extrasystole. ECG shows no P wave, QRS complex is deformed, there is a full compensatory pause. What extrasystoles are these?

  1. A. Sinus
  2. B. Ventricular
  3. C. Atrioventricular
  4. D. Atrial
  5. E. -
Hint

Consider where an impulse must arise to give a wide, deformed QRS without a preceding P wave, and why the sinus rhythm is not reset so the pause is full.

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