FRONTIERS IN BIOSCIENCE; NORMAL AND ABNORMAL EKGs
	CONDITION AND ITS EKG FEATURES EKG Normal EKG with vertical axis Upright P and T waves upright in lead I PR < 0.20 sec Duration of q < 0.02 sec in leads II, III, and aVF Frontal plane QRS vector 0-90 degrees. Precordial progression from r in V1 to R in V5 and V Concordance of T with QRS. QTc < 0.44 sec