This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: FMGE 2019, Subject name: Physiology
[{'content': 'Which of the following is not true regarding Wolff-Parkinson-White (WPW) syndrome? \nSelect and explain. \nA. No AV nodal delay, B. Delta wave is seen on ECG, C. Prolonged PR interval, D. Bundle of Kent', 'role': 'user'}, {'content': 'Answer: C \nExplanation: Wolff-Parkinson-White (WPW) syndrome Bundle of Kent is an aberrant anomalous path that connects SA node directly to the ventricles, bypassing the AV node. It is found in Wolff-Parkinson-White (WPW) syndrome There is no AV nodal delay. Hence, ventricular contraction stas very early, before its filling has occurs substantially. This will reduce the stroke volume In the absence of AV nodal delay, there is shoened PR interval on ECG. d ("delta") wave is seen on ECG; it results from the shoened PR interval.', 'role': 'assistant'}]