Relias Basic Dysrhythmia Practice Questions 2026 |
Questions & Answers PDF
1. Describe the origin of normal sinus rhythm and its significance in cardiac
function.
Normal sinus rhythm is generated by the atrioventricular node and is
irrelevant to heart health.
Normal sinus rhythm originates in the ventricles and indicates a
potential heart issue.
Normal sinus rhythm is caused by external electrical stimulation and is
not a natural rhythm.
Normal sinus rhythm originates in the sinoatrial node and is
significant as it indicates a healthy heart rhythm.
2. What is the ventricular rate range in the ventricular arrhythmia Accelerated
ideoventricular rhythm?
150-300
400-600
50-110
<40 min
110-250/min
3. What is the primary feature of 3rd degree heart block in terms of P waves
and QRS complexes?
P waves are absent
No obvious correlation between P waves and QRS complexes
P waves are consistently followed by QRS complexes
, QRS complexes are consistently narrow
4. Which of the following rhythm it is identified by a wide QRS complex and a
heart rate of 20/min to 40/min?
Idioventricular
Accelerated Junctional
Atrial Fibrillation
Ventricular Bradycardia
5. If a patient presents with atrial flutter and a 2 to 1 block, what would you
expect to observe on an ECG?
Regular P-waves with a consistent QRS complex.
A flat line indicating no electrical activity.
Irregular atrial activity with a ventricular response of half the atrial
rate.
Consistent P-waves followed by a normal QRS complex.
6. A patient is demonstrating second-degree heart block (Wenkebach [type I]).
The nurse realizes this rhythm is characterized by:
Prolonged PR interval greater than 0.22
Consistent PR interval with occasional dropped QRS complexes
Progressive lengthening of the PR interval until a QRS is dropped
Complete disassociation of the atria and ventricles
7. Describe how a premature atrial contraction (PAC) affects the regularity of
the heart rhythm.
, PACs can interrupt the regularity of the underlying rhythm.
PACs have no effect on the heart rhythm.
PACs only affect the heart rate.
PACs stabilize the heart rhythm.
8. What is the typical heart rate range for junctional rhythm?
60-100 beats per minute
40-60 beats per minute
80-120 beats per minute
20-40 beats per minute
9. Describe the heart rate range that indicates sinus tachycardia and its
significance in cardiac health.
Sinus tachycardia occurs when the heart rate is below 60 beats per
minute.
Sinus tachycardia is characterized by a heart rate that fluctuates
between 80 and 120 beats per minute.
Sinus tachycardia is defined as a heart rate between 60 and 100 beats
per minute.
Sinus tachycardia is indicated by a heart rate greater than 100 beats
per minute, typically ranging from 100 to 150 beats per minute.
10. If a patient presents with a heart rate of 75 beats per minute and is
diagnosed with accelerated idioventricular rhythm, what would be the most
appropriate clinical approach?
Prepare for emergency cardioversion.
Refer the patient for surgical intervention.
Questions & Answers PDF
1. Describe the origin of normal sinus rhythm and its significance in cardiac
function.
Normal sinus rhythm is generated by the atrioventricular node and is
irrelevant to heart health.
Normal sinus rhythm originates in the ventricles and indicates a
potential heart issue.
Normal sinus rhythm is caused by external electrical stimulation and is
not a natural rhythm.
Normal sinus rhythm originates in the sinoatrial node and is
significant as it indicates a healthy heart rhythm.
2. What is the ventricular rate range in the ventricular arrhythmia Accelerated
ideoventricular rhythm?
150-300
400-600
50-110
<40 min
110-250/min
3. What is the primary feature of 3rd degree heart block in terms of P waves
and QRS complexes?
P waves are absent
No obvious correlation between P waves and QRS complexes
P waves are consistently followed by QRS complexes
, QRS complexes are consistently narrow
4. Which of the following rhythm it is identified by a wide QRS complex and a
heart rate of 20/min to 40/min?
Idioventricular
Accelerated Junctional
Atrial Fibrillation
Ventricular Bradycardia
5. If a patient presents with atrial flutter and a 2 to 1 block, what would you
expect to observe on an ECG?
Regular P-waves with a consistent QRS complex.
A flat line indicating no electrical activity.
Irregular atrial activity with a ventricular response of half the atrial
rate.
Consistent P-waves followed by a normal QRS complex.
6. A patient is demonstrating second-degree heart block (Wenkebach [type I]).
The nurse realizes this rhythm is characterized by:
Prolonged PR interval greater than 0.22
Consistent PR interval with occasional dropped QRS complexes
Progressive lengthening of the PR interval until a QRS is dropped
Complete disassociation of the atria and ventricles
7. Describe how a premature atrial contraction (PAC) affects the regularity of
the heart rhythm.
, PACs can interrupt the regularity of the underlying rhythm.
PACs have no effect on the heart rhythm.
PACs only affect the heart rate.
PACs stabilize the heart rhythm.
8. What is the typical heart rate range for junctional rhythm?
60-100 beats per minute
40-60 beats per minute
80-120 beats per minute
20-40 beats per minute
9. Describe the heart rate range that indicates sinus tachycardia and its
significance in cardiac health.
Sinus tachycardia occurs when the heart rate is below 60 beats per
minute.
Sinus tachycardia is characterized by a heart rate that fluctuates
between 80 and 120 beats per minute.
Sinus tachycardia is defined as a heart rate between 60 and 100 beats
per minute.
Sinus tachycardia is indicated by a heart rate greater than 100 beats
per minute, typically ranging from 100 to 150 beats per minute.
10. If a patient presents with a heart rate of 75 beats per minute and is
diagnosed with accelerated idioventricular rhythm, what would be the most
appropriate clinical approach?
Prepare for emergency cardioversion.
Refer the patient for surgical intervention.
