Relias Dysrhythmia Basic A Test | 2026/2027 Questions and
Answers Complete Certification Exam | Actual Questions &
Verified Answers | Rhythm Identification & Priority
Interventions | Pass Guarantee
Section 1: Rhythm Identification & Analysis
1. The rhythm strip shows a regular rhythm at a rate of 68 bpm. Each QRS complex
(0.08 sec) is preceded by a normal, upright P wave with a consistent PR interval of 0.18
sec. No ectopic beats are present. What is the correct rhythm interpretation?
A. Sinus Bradycardia
B. Normal Sinus Rhythm
C. First-Degree AV Block
D. Sinus Tachycardia
Correct Answer: B
Rationale: This is Normal Sinus Rhythm (NSR) because the rate is within normal limits
(60-100 bpm), the rhythm is regular, and all key components (P waves, PR interval, QRS
complexes) are normal and consistent. Sinus Bradycardia would be <60 bpm, and
First-Degree AV Block would have a prolonged PR interval >0.20 seconds.
,2. The rhythm strip reveals an irregularly irregular rhythm at a rate of 110-130 bpm. No
distinct P waves are visible; instead, chaotic fibrillatory waves are present between QRS
complexes. The QRS complexes are narrow (0.08 sec) but occur at variable intervals.
What is the correct rhythm interpretation?
A. Atrial Flutter
B. Sinus Arrhythmia
C. Atrial Fibrillation
D. Supraventricular Tachycardia
Correct Answer: C
Rationale: Atrial Fibrillation is characterized by an irregularly irregular rhythm, absence
of distinct P waves, and fibrillatory waves. The variable R-R intervals confirm the
irregularity. Atrial Flutter would show distinct sawtooth flutter waves, and SVT would
typically be regular.
3. The rhythm strip displays a regular rhythm at a rate of 48 bpm. Each QRS complex
(0.10 sec) is preceded by uniform, upright P waves with a consistent PR interval of 0.16
sec. The patient reports feeling dizzy. What is the correct rhythm interpretation?
A. Sinus Arrest
B. Third-Degree AV Block
C. Sinus Bradycardia
D. First-Degree AV Block
Correct Answer: C
, Rationale: This is Sinus Bradycardia because the rate is <60 bpm with normal sinus P
waves and a consistent PR interval. The patient’s symptoms correlate with the slow
rate. Third-Degree AV Block would show complete dissociation between P waves and
QRS complexes, and First-Degree AV Block requires a PR interval >0.20 seconds.
4. The rhythm strip shows sawtooth-shaped flutter waves occurring at a rate of 280
bpm. The ventricular response is regular at 70 bpm with narrow QRS complexes (0.08
sec). A consistent 4:1 atrial-to-ventricular ratio is observed. What is the correct rhythm
interpretation?
A. Atrial Fibrillation
B. Atrial Flutter
C. Ventricular Tachycardia
D. Normal Sinus Rhythm
Correct Answer: B
Rationale: Atrial Flutter is identified by the characteristic sawtooth flutter waves at
250-350 bpm with a regular ventricular response. The fixed 4:1 conduction ratio is
classic. Atrial Fibrillation would have fibrillatory waves and an irregularly irregular
rhythm.
5. The rhythm strip reveals a sustained run of wide QRS complexes (0.16 sec) at a rate
of 180 bpm. The QRS complexes have a uniform shape and appear in a rapid, regular
Answers Complete Certification Exam | Actual Questions &
Verified Answers | Rhythm Identification & Priority
Interventions | Pass Guarantee
Section 1: Rhythm Identification & Analysis
1. The rhythm strip shows a regular rhythm at a rate of 68 bpm. Each QRS complex
(0.08 sec) is preceded by a normal, upright P wave with a consistent PR interval of 0.18
sec. No ectopic beats are present. What is the correct rhythm interpretation?
A. Sinus Bradycardia
B. Normal Sinus Rhythm
C. First-Degree AV Block
D. Sinus Tachycardia
Correct Answer: B
Rationale: This is Normal Sinus Rhythm (NSR) because the rate is within normal limits
(60-100 bpm), the rhythm is regular, and all key components (P waves, PR interval, QRS
complexes) are normal and consistent. Sinus Bradycardia would be <60 bpm, and
First-Degree AV Block would have a prolonged PR interval >0.20 seconds.
,2. The rhythm strip reveals an irregularly irregular rhythm at a rate of 110-130 bpm. No
distinct P waves are visible; instead, chaotic fibrillatory waves are present between QRS
complexes. The QRS complexes are narrow (0.08 sec) but occur at variable intervals.
What is the correct rhythm interpretation?
A. Atrial Flutter
B. Sinus Arrhythmia
C. Atrial Fibrillation
D. Supraventricular Tachycardia
Correct Answer: C
Rationale: Atrial Fibrillation is characterized by an irregularly irregular rhythm, absence
of distinct P waves, and fibrillatory waves. The variable R-R intervals confirm the
irregularity. Atrial Flutter would show distinct sawtooth flutter waves, and SVT would
typically be regular.
3. The rhythm strip displays a regular rhythm at a rate of 48 bpm. Each QRS complex
(0.10 sec) is preceded by uniform, upright P waves with a consistent PR interval of 0.16
sec. The patient reports feeling dizzy. What is the correct rhythm interpretation?
A. Sinus Arrest
B. Third-Degree AV Block
C. Sinus Bradycardia
D. First-Degree AV Block
Correct Answer: C
, Rationale: This is Sinus Bradycardia because the rate is <60 bpm with normal sinus P
waves and a consistent PR interval. The patient’s symptoms correlate with the slow
rate. Third-Degree AV Block would show complete dissociation between P waves and
QRS complexes, and First-Degree AV Block requires a PR interval >0.20 seconds.
4. The rhythm strip shows sawtooth-shaped flutter waves occurring at a rate of 280
bpm. The ventricular response is regular at 70 bpm with narrow QRS complexes (0.08
sec). A consistent 4:1 atrial-to-ventricular ratio is observed. What is the correct rhythm
interpretation?
A. Atrial Fibrillation
B. Atrial Flutter
C. Ventricular Tachycardia
D. Normal Sinus Rhythm
Correct Answer: B
Rationale: Atrial Flutter is identified by the characteristic sawtooth flutter waves at
250-350 bpm with a regular ventricular response. The fixed 4:1 conduction ratio is
classic. Atrial Fibrillation would have fibrillatory waves and an irregularly irregular
rhythm.
5. The rhythm strip reveals a sustained run of wide QRS complexes (0.16 sec) at a rate
of 180 bpm. The QRS complexes have a uniform shape and appear in a rapid, regular
