Figure: ECG incomplete left bundle branch block

Introduction

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          Male

PR:  197
QRS: 117      Normal sinus rhythm @ 81/min
QT:  379      Left axis deviation.
QTc: 440      Incomplete left bundle branch block. QRS < 120 mS, terminal forces left.

 Axes        Peaked T waves, consider hyperkalemia.

P:    58
QRS: -43
T:    75

Courtesy of Kerala Serio, M.D. UCSF Fresno.