KROK 1 2013 – Question 129 · KROK (Medicine) · Physiology
ECG of a patient displays an abnormally long R wave (up to 0,18 s). This is caused by a decrease in the conduction velocity of the following heart structures:
- A. Atria
- B. Atrio-ventricular node
- C. Right ventricle
- D. Left ventricle
- E. Ventricles
Hint
Decide which part of the ECG the R wave belongs to and what spreading excitation produces it; a longer duration then points to slower conduction in that structure.
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