KROK 1 2019 – Question 23 · KROK (Medicine) · Pathophysiology
A 48-year-old man is unconscious. He has a history of several syncopal episodes with convulsions. ECG shows deformed QRS complexes unconnected with P waves, atrial contractions are approximately 70/min., ventricular contractions 25-30/min. Name the type of arrhythmia in this case:
- A. Second-degree atrioventricular block
- B. Intraventricular block
- C. Intraatrial block
- D. Complete atrioventricular block
- E. First-degree atrioventricular block
Hint
Compare the rate of the atria with the rate of the ventricles and ask whether the two chambers are still coupled by the conducting system.
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