What type of heart rhythm causes the atria to be stimulated by an ectopic focus rather than by the SA node?
a. sinus bradycardia
b. supraventricular tachycardia
c. junctional arrhythmia
d. atrial arrhythmias
Answer: D
What type of heart rhythm causes the atria to be stimulated by an ectopic focus rather than by the SA node?
a. sinus bradycardia
b. supraventricular tachycardia
c. junctional arrhythmia
d. atrial arrhythmias