This is a real-world medical entrance exam question, please give the true answer based on the question and selection. Topic name: C.V.S., Subject name: Medicine
[{'content': 'All the following ECG features indicates ventricular tachycardia except: \nSelect and explain. \nA. Capture beats, B. Similar QRS in all leads, C. Left axis deviation, D. Broad complex tachycardia', 'role': 'user'}, {'content': "Answer: C \nExplanation: Ref: Harrison's Principles of Internal Medicine, 18th edition, Pages 1891-1893Explanation:BROAD COMPLEX TACHYCARDIABroad Complex TachycardiaSVT with aberrancyVentricular tachycardia* No AV dissociation* QRS <140 ms* AV Dissociation l Fusion or Capture beats)* QRS > 140 nis* Extreme QRS Axis 90 to 180 (Northwest Axis)* Delayed activation of initial phase of QRS wave (>100 ms)* Bizarre QRS not fitting into typical LBBB.'RBBB pattern* Concordance of QRS in all precordial leads* RSR1 with taller R > R1", 'role': 'assistant'}]