Relias Dysrhythmia Basic Test - Practice Exam Questions And 100%
Correct Answers
Instructions: Review the rhythm description. Select the best answer for the
interpretation or the appropriate nursing action.
Question 1
Rhythm Strip Description:
The rhythm is regular. The rate is approximately 48 bpm. There is a P wave (a
small, upright bump) before every QRS complex. The PR interval measures about
0.16 seconds. The QRS complexes are narrow (<0.12 seconds).
What is this rhythm?
A. Sinus Tachycardia
B. Sinus Bradycardia
C. Atrial Fibrillation
D. Junctional Rhythm
Correct Answer: B. Sinus Bradycardia
Rationale: A regular rhythm with a rate below 60 bpm, where every QRS complex
is preceded by a normal P wave, is the definition of Sinus Bradycardia . The SA
node is firing, just at a slow rate.
Question 2
Rhythm Strip Description:
The rhythm is regular. The rate is approximately 130 bpm. There is a P wave
before every QRS complex. The PR interval is normal (0.16 seconds). The QRS
complexes are narrow.
, What is this rhythm?
A. Sinus Tachycardia
B. Supraventricular Tachycardia (SVT)
C. Ventricular Tachycardia
D. Atrial Flutter
Correct Answer: A. Sinus Tachycardia
Rationale: Sinus Tachycardia is defined as a regular rhythm with a rate between
100-150 bpm that still maintains the normal conduction pattern: a P wave before
every narrow QRS .
Question 3
Rhythm Strip Description:
The rhythm is irregularly irregular (no pattern to the R-R intervals). There are no
discernible P waves; the baseline appears chaotic. The QRS complexes are narrow.
What is this rhythm?
A. Sinus Arrhythmia
B. Atrial Flutter with variable block
C. Atrial Fibrillation
D. Multifocal Atrial Tachycardia
Correct Answer: C. Atrial Fibrillation
Rationale: The classic hallmarks of Atrial Fibrillation are an "irregularly irregular"
rhythm and the absence of distinct P waves due to chaotic atrial activity . The
ventricular rate can be controlled (under 100 bpm) or rapid (RVR).
Question 4
Rhythm Strip Description:
The rhythm is regular. The atrial rate is rapid (approx. 280 bpm), producing a
Correct Answers
Instructions: Review the rhythm description. Select the best answer for the
interpretation or the appropriate nursing action.
Question 1
Rhythm Strip Description:
The rhythm is regular. The rate is approximately 48 bpm. There is a P wave (a
small, upright bump) before every QRS complex. The PR interval measures about
0.16 seconds. The QRS complexes are narrow (<0.12 seconds).
What is this rhythm?
A. Sinus Tachycardia
B. Sinus Bradycardia
C. Atrial Fibrillation
D. Junctional Rhythm
Correct Answer: B. Sinus Bradycardia
Rationale: A regular rhythm with a rate below 60 bpm, where every QRS complex
is preceded by a normal P wave, is the definition of Sinus Bradycardia . The SA
node is firing, just at a slow rate.
Question 2
Rhythm Strip Description:
The rhythm is regular. The rate is approximately 130 bpm. There is a P wave
before every QRS complex. The PR interval is normal (0.16 seconds). The QRS
complexes are narrow.
, What is this rhythm?
A. Sinus Tachycardia
B. Supraventricular Tachycardia (SVT)
C. Ventricular Tachycardia
D. Atrial Flutter
Correct Answer: A. Sinus Tachycardia
Rationale: Sinus Tachycardia is defined as a regular rhythm with a rate between
100-150 bpm that still maintains the normal conduction pattern: a P wave before
every narrow QRS .
Question 3
Rhythm Strip Description:
The rhythm is irregularly irregular (no pattern to the R-R intervals). There are no
discernible P waves; the baseline appears chaotic. The QRS complexes are narrow.
What is this rhythm?
A. Sinus Arrhythmia
B. Atrial Flutter with variable block
C. Atrial Fibrillation
D. Multifocal Atrial Tachycardia
Correct Answer: C. Atrial Fibrillation
Rationale: The classic hallmarks of Atrial Fibrillation are an "irregularly irregular"
rhythm and the absence of distinct P waves due to chaotic atrial activity . The
ventricular rate can be controlled (under 100 bpm) or rapid (RVR).
Question 4
Rhythm Strip Description:
The rhythm is regular. The atrial rate is rapid (approx. 280 bpm), producing a
