Reverse splitting of 2nd hea sound heard in -: (A) RBBB, (B) LBBB, (C) Tricuspid stenosis, (D) AR
Answer is B. In LBBB, Left ventricular depolarisation is late than RV depolarisation, so A2 appeares late than P2. Causes of Reverse splitting : RV pacemaker WPW syndrome Eisen menkers syndrome AS LVF LBBB Ref : Harrison's 20th edition pg 1448