AdventHealth Cardiac Rhythm Test Bank 2026 | Most
Frequently Tested Questions | Graded A+
1. What is the range of the atrial rate in atrial flutter?
250-350 bpm
150-200 bpm
100-150 bpm
60-100 bpm
2. How many beats per minute does the AV node allow the heart to pump?
60-80 bpm
30-40 bpm
100-140 bpm
80-100 bpm
40-60 bpm
3. Which cardiac rhythm describes sinus arrhythmia?
Random skipped beats
Highly irregular rate
Rate that varies with respiration
Tachycardia
4. Which ECG finding is characteristic of atrial fibrillation (AFib)?
Regular rhythm with a heart rate of 60-100 bpm.
Irregularly irregular rhythm with no distinct P waves.
, Wide QRS complexes with a heart rate of 150-250 bpm.
P waves preceding each QRS complex.
5. Ventricular fibrillation is characterized by:
A rapid heartbeat caused by ventricular ischemia or irritability
An ectopic focus in the ventricles, causing the heart to beat
prematurely
A total disorganization of ventricular activity
An impulse originating in the ventricles and traveling to the rest of the
myocardium
6. Normal pacing for the SA node is?
60-100 bpm
40-60 bpm
20-40 bpm
50-70 bpm
7. Describe the appearance of ventricular tachycardia on an EKG and its
significance.
Ventricular tachycardia appears on an EKG as a wide QRS complex
and indicates a rapid heartbeat.
Ventricular tachycardia shows normal QRS complexes and a slow
heart rate.
Ventricular tachycardia is identified by a flat line on the EKG.
Ventricular tachycardia is characterized by narrow QRS complexes
and irregular rhythms.
, 8. In a scenario where both the sinoatrial node and atrioventricular node fail,
what would be the expected heart rate and the role of the Bundle branches
in maintaining cardiac function?
The expected heart rate would be 40-60 bpm, with the Bundle
branches unable to maintain cardiac function.
The expected heart rate would be 20-40 bpm, with the Bundle
branches acting as a tertiary pacemaker to maintain some level of
cardiac function.
The expected heart rate would be 80-120 bpm, with the Bundle
branches functioning normally.
The expected heart rate would be 60-100 bpm, with the Bundle
branches taking over as the primary pacemaker.
9. What is the primary characteristic of the absolute refractory period in cardiac
cells?
Cardiac cells will only partially respond to stimulation.
Cardiac cells will undergo depolarization.
Cardiac cells will not respond to further stimulation.
Cardiac cells will contract in response to stimulation.
10. What distinguishes ventricular fibrillation from other heart rhythm
disturbances?
Slow and irregular heartbeat
Prolonged PR interval
Absence of atrial contractions
Rapid and chaotic heartbeat
Frequently Tested Questions | Graded A+
1. What is the range of the atrial rate in atrial flutter?
250-350 bpm
150-200 bpm
100-150 bpm
60-100 bpm
2. How many beats per minute does the AV node allow the heart to pump?
60-80 bpm
30-40 bpm
100-140 bpm
80-100 bpm
40-60 bpm
3. Which cardiac rhythm describes sinus arrhythmia?
Random skipped beats
Highly irregular rate
Rate that varies with respiration
Tachycardia
4. Which ECG finding is characteristic of atrial fibrillation (AFib)?
Regular rhythm with a heart rate of 60-100 bpm.
Irregularly irregular rhythm with no distinct P waves.
, Wide QRS complexes with a heart rate of 150-250 bpm.
P waves preceding each QRS complex.
5. Ventricular fibrillation is characterized by:
A rapid heartbeat caused by ventricular ischemia or irritability
An ectopic focus in the ventricles, causing the heart to beat
prematurely
A total disorganization of ventricular activity
An impulse originating in the ventricles and traveling to the rest of the
myocardium
6. Normal pacing for the SA node is?
60-100 bpm
40-60 bpm
20-40 bpm
50-70 bpm
7. Describe the appearance of ventricular tachycardia on an EKG and its
significance.
Ventricular tachycardia appears on an EKG as a wide QRS complex
and indicates a rapid heartbeat.
Ventricular tachycardia shows normal QRS complexes and a slow
heart rate.
Ventricular tachycardia is identified by a flat line on the EKG.
Ventricular tachycardia is characterized by narrow QRS complexes
and irregular rhythms.
, 8. In a scenario where both the sinoatrial node and atrioventricular node fail,
what would be the expected heart rate and the role of the Bundle branches
in maintaining cardiac function?
The expected heart rate would be 40-60 bpm, with the Bundle
branches unable to maintain cardiac function.
The expected heart rate would be 20-40 bpm, with the Bundle
branches acting as a tertiary pacemaker to maintain some level of
cardiac function.
The expected heart rate would be 80-120 bpm, with the Bundle
branches functioning normally.
The expected heart rate would be 60-100 bpm, with the Bundle
branches taking over as the primary pacemaker.
9. What is the primary characteristic of the absolute refractory period in cardiac
cells?
Cardiac cells will only partially respond to stimulation.
Cardiac cells will undergo depolarization.
Cardiac cells will not respond to further stimulation.
Cardiac cells will contract in response to stimulation.
10. What distinguishes ventricular fibrillation from other heart rhythm
disturbances?
Slow and irregular heartbeat
Prolonged PR interval
Absence of atrial contractions
Rapid and chaotic heartbeat
