KROK 1 2020 – Question 117 · KROK (Medicine) · Physiology
ECG of the patient shows increased duration of the QRS complex. What is the most likely cause?
- A. Increased period of ventricular excitation
- B. Increased atrial and ventricular excitability
- C. Disturbed conduction in the atrioventricular node
- D. Increased period of atrial excitation
- E. Increased atrial excitability
Hint
Recall what electrical event in the heart the QRS complex records, and think about what a longer duration means for the time that event takes.
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