Question 1
What causes fusion beats?
◦ Depolarization of the ventricle by a sinus impulse that coincides with polarization by a premature ventricular impulse
◦ Simultaneous depolarization of the ventricle by a sinus impulse and a premature ventricular impulse
◦ Polarization of the ventricle by a sinus impulse that coincides with depolarization by a premature ventricular impulse
◦ Simultaneous polarization of the ventricle by a sinus impulse and a premature ventricular impulse
Question 2
All ventricular rhythms are life-threatening.
◦ true
◦ false