EKGfascicle blockleft posteriorblock1. 1. Characteristics and Morphology Leads QRS Duration QRS Morphology T Wave I, aVL <0.12 s rS Upright II, III, aVF <0.12 s qR Upright 2. 2. Different Diagnosis Condition Differential From LPFB (1) Asthenic individuals A normal electrocardiogram recorded ...