Advent Health EKG Study Guide 2026 |
2027Complete Review | 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)
, Ventricular fibrillation is fatal because the heart is beating to an
ectopic pacemaker and the rhythm is irregular.
Ventricular fibrillation is fatal because the ventricles quiver and do not
relax long enough to be filled with blood by the atria.
Ventricular fibrillation is fatal because the ventricles do not relax long
enough for the coronary vessels to fill with blood for the coronary
tissue to receive oxygen and nutrients.
Ventricular fibrillation is fatal because the ventricles quiver and do
not pump blood to the systemic circulation.
Ventricular fibrillation is fatal because the heart rate slows significantly
and blood flow and pressure decreases.
5. The primary characteristic of a junctional rhythm is:
A shortened PRI (< .12 seconds)
A long QRS (> .12 seconds)
Invert and/or missing p waves
Upright, uniform p waves, 1 p before every QRS
6. How do the P waves of junctional rhythms differ from the P waves of sinus
rhythms?
Junctional P waves are inverted; sinus Ps are missing.
Junctional P waves are upright; sinus Ps are inverted.
Junctional P waves are missing; sinus Ps are inverted.
Junctional P waves are inverted; sinus Ps are upright.
7. Describe the significance of asystole in relation to heart function.
2027Complete Review | 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)
, Ventricular fibrillation is fatal because the heart is beating to an
ectopic pacemaker and the rhythm is irregular.
Ventricular fibrillation is fatal because the ventricles quiver and do not
relax long enough to be filled with blood by the atria.
Ventricular fibrillation is fatal because the ventricles do not relax long
enough for the coronary vessels to fill with blood for the coronary
tissue to receive oxygen and nutrients.
Ventricular fibrillation is fatal because the ventricles quiver and do
not pump blood to the systemic circulation.
Ventricular fibrillation is fatal because the heart rate slows significantly
and blood flow and pressure decreases.
5. The primary characteristic of a junctional rhythm is:
A shortened PRI (< .12 seconds)
A long QRS (> .12 seconds)
Invert and/or missing p waves
Upright, uniform p waves, 1 p before every QRS
6. How do the P waves of junctional rhythms differ from the P waves of sinus
rhythms?
Junctional P waves are inverted; sinus Ps are missing.
Junctional P waves are upright; sinus Ps are inverted.
Junctional P waves are missing; sinus Ps are inverted.
Junctional P waves are inverted; sinus Ps are upright.
7. Describe the significance of asystole in relation to heart function.
