KROK 1 Stomatology 2014 – Question 191 · KROK (Dentistry)
ECG of a 46-year-old patient shows an increase in the QRS duration. This might be caused by:
- A. Increased atrial activation time
- B. Increased ventricular activation time
- C. Increased atrial excitability
- D. Conduction disturbances in the AV node
- E. Increased atrial and ventricular excitability
Hint
Recall which electrical event in the heart the QRS complex reflects and what makes it last longer.
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