Figure: ECG normal sinus rhythm

Introduction

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64 yrs     Female   BP 169/80

PR:  195
QRS:  86      Normal sinus rhythm @ 77/min.
QT:  350
QTc: 396

 Axes

P:     8
QRS:  21
T:    36

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