1. Most atrial fibrillation waves are not followed by a QRS complex because the: a. Impulses are initiated in the left ventricle b. Stimuli are not strong enough to be conducted c. Ventricle can...

1. Most atrial fibrillation waves are not followed by a QRS complex because the:

a. Impulses are initiated in the left ventricle

b. Stimuli are not strong enough to be conducted

c. Ventricle can receive only 120 stimuli in 1 min

d. AV junction is unable to conduct all the excitation impulses

2. Supraventricular rhythm means that the impulse, or stimulus, arises above the ventricles.

a. True                  b. False