All the following ECG features indicates ventricular tachycardia except:
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
Capture beats
Similar QRS in all leads
Left axis deviation
Broad complex tachycardia
C.V.S.