A 55-year-old woman comes to emergency room complaint of chest pain of one-hour duration. She is known to havehypertension, dyslipidemia and diabetes mellitus type 2. On examination looks distressed aand diaphoretic. An ECG showsP waves independent of QRS complexes. The QRS interval is 0.11 seconds with normal morphology. Which of thefollowing is the most likely trigger of this patient ventricular contraction?
a. Bundle of His
b. Purkinje fibers
c. SA node
d. Bachmann bundle
e. Left bundle brancha
