Graded A+
1. In third degree AV block, the PR Interval for the conducted beats
is absent
is short
is constant
is long
2. What distinguishes the heart rate of Accelerated Idioventricular Rhythm from
Idioventricular Rhythm?
AIVR is consistently >100 BPM.
AIVR is always <40 BPM.
AIVR has a variable rate without a specific range.
AIVR ranges between 40-100 BPM.
3. Describe the significance of a wide QRS complex in the context of cardiac
rhythms.
A wide QRS complex reflects atrial activity.
A wide QRS complex indicates a delay in ventricular depolarization,
often seen in Bundle Branch Block.
A wide QRS complex is associated with increased heart rate.
A wide QRS complex signifies normal conduction through the
ventricles.
4. Why is ventricular fibrillation fatal? (Module 18.13C)