Relias Dysrhythmia Basic Test
Which of the following best describes a normal sinus rhythm?
A. Heart rate of 40-60 beats per minute, irregularly irregular rhythm
B. Heart rate of 60-100 beats per minute, regular rhythm, with one P wave for every
QRS complex
C. Heart rate of 100-150 beats per minute, regularly irregular rhythm
D. Heart rate of 120-180 beats per minute, irregularly irregular rhythm
Answer: B. Heart rate of 60-100 beats per minute, regular rhythm, with one P wave
for every QRS complex
What is the hallmark characteristic of atrial fibrillation on an ECG?
A. Uniform P waves preceding each QRS complex
B. Wide QRS complexes with a regular rhythm
C. Absence of distinct P waves with an irregularly irregular ventricular rhythm
D. Regular, fast QRS complexes with no P waves
Answer: C. Absence of distinct P waves with an irregularly irregular ventricular
rhythm
Which of the following rhythms is characterized by a “sawtooth” pattern on an ECG?
A. Atrial flutter
B. Ventricular tachycardia
C. Sinus bradycardia
D. Junctional rhythm
Answer: A. Atrial flutter
What is the typical treatment for symptomatic bradycardia?
A. Administration of atropine
,B. Administration of beta-blockers
C. Use of defibrillation
D. Increasing fluid intake
Answer: A. Administration of atropine
Which ECG finding is indicative of ventricular tachycardia?
A. Wide QRS complexes with a rate of 150-250 beats per minute
B. Narrow QRS complexes with a regular rate of 60-100 beats per minute
C. Presence of inverted P waves with a heart rate of 40-60 beats per minute
D. Normal QRS complexes with an irregular rhythm
Answer: A. Wide QRS complexes with a rate of 150-250 beats per minute
In which condition is a “junctional rhythm” commonly observed?
A. Myocardial infarction
B. Severe hypoxia
C. Electrolyte imbalances
D. Chronic hypertension
Answer: C. Electrolyte imbalances
What is the primary goal of cardioversion in patients with atrial fibrillation?
A. To restore normal sinus rhythm
B. To decrease heart rate
C. To reduce the incidence of ventricular fibrillation
D. To increase cardiac output
Answer: A. To restore normal sinus rhythm
What does a “QRS complex” represent on an ECG?
A. Atrial depolarization
, B. Ventricular depolarization
C. Atrial repolarization
D. Ventricular repolarization
Answer: B. Ventricular depolarization
Which of the following rhythms is characterized by a regular, rapid heartbeat with a
heart rate between 100-150 beats per minute and narrow QRS complexes?
A. Sinus tachycardia
B. Supraventricular tachycardia
C. Atrial flutter
D. Ventricular fibrillation
Answer: B. Supraventricular tachycardia
In which condition is a “third-degree heart block” commonly seen?
A. Acute myocardial infarction
B. Atrial fibrillation
C. Ventricular tachycardia
D. Severe hypothermia
Answer: A. Acute myocardial infarction
Which type of dysrhythmia is indicated by a “P wave with a different shape
compared to normal” and a heart rate less than 60 beats per minute?
A. Sinus bradycardia
B. Premature atrial contraction
C. Junctional rhythm
D. Atrial flutter
Answer: B. Premature atrial contraction
What is the primary treatment for a patient experiencing ventricular fibrillation?
Which of the following best describes a normal sinus rhythm?
A. Heart rate of 40-60 beats per minute, irregularly irregular rhythm
B. Heart rate of 60-100 beats per minute, regular rhythm, with one P wave for every
QRS complex
C. Heart rate of 100-150 beats per minute, regularly irregular rhythm
D. Heart rate of 120-180 beats per minute, irregularly irregular rhythm
Answer: B. Heart rate of 60-100 beats per minute, regular rhythm, with one P wave
for every QRS complex
What is the hallmark characteristic of atrial fibrillation on an ECG?
A. Uniform P waves preceding each QRS complex
B. Wide QRS complexes with a regular rhythm
C. Absence of distinct P waves with an irregularly irregular ventricular rhythm
D. Regular, fast QRS complexes with no P waves
Answer: C. Absence of distinct P waves with an irregularly irregular ventricular
rhythm
Which of the following rhythms is characterized by a “sawtooth” pattern on an ECG?
A. Atrial flutter
B. Ventricular tachycardia
C. Sinus bradycardia
D. Junctional rhythm
Answer: A. Atrial flutter
What is the typical treatment for symptomatic bradycardia?
A. Administration of atropine
,B. Administration of beta-blockers
C. Use of defibrillation
D. Increasing fluid intake
Answer: A. Administration of atropine
Which ECG finding is indicative of ventricular tachycardia?
A. Wide QRS complexes with a rate of 150-250 beats per minute
B. Narrow QRS complexes with a regular rate of 60-100 beats per minute
C. Presence of inverted P waves with a heart rate of 40-60 beats per minute
D. Normal QRS complexes with an irregular rhythm
Answer: A. Wide QRS complexes with a rate of 150-250 beats per minute
In which condition is a “junctional rhythm” commonly observed?
A. Myocardial infarction
B. Severe hypoxia
C. Electrolyte imbalances
D. Chronic hypertension
Answer: C. Electrolyte imbalances
What is the primary goal of cardioversion in patients with atrial fibrillation?
A. To restore normal sinus rhythm
B. To decrease heart rate
C. To reduce the incidence of ventricular fibrillation
D. To increase cardiac output
Answer: A. To restore normal sinus rhythm
What does a “QRS complex” represent on an ECG?
A. Atrial depolarization
, B. Ventricular depolarization
C. Atrial repolarization
D. Ventricular repolarization
Answer: B. Ventricular depolarization
Which of the following rhythms is characterized by a regular, rapid heartbeat with a
heart rate between 100-150 beats per minute and narrow QRS complexes?
A. Sinus tachycardia
B. Supraventricular tachycardia
C. Atrial flutter
D. Ventricular fibrillation
Answer: B. Supraventricular tachycardia
In which condition is a “third-degree heart block” commonly seen?
A. Acute myocardial infarction
B. Atrial fibrillation
C. Ventricular tachycardia
D. Severe hypothermia
Answer: A. Acute myocardial infarction
Which type of dysrhythmia is indicated by a “P wave with a different shape
compared to normal” and a heart rate less than 60 beats per minute?
A. Sinus bradycardia
B. Premature atrial contraction
C. Junctional rhythm
D. Atrial flutter
Answer: B. Premature atrial contraction
What is the primary treatment for a patient experiencing ventricular fibrillation?
