Relias Dysrhythmia Basic A & B – Complete 2026
Test Bank with Answers | ECG Interpretation,
Cardiac Rhythm Analysis, PEA, V-Tach, A-Fib,
Heart Blocks | NCLEX & Nursing Exam Prep
(NURS 332, NUR 211)
Core Domains
• Sinus Rhythms
• Atrial Dysrhythmias
• Junctional Rhythms
• Ventricular Dysrhythmias
• Heart Blocks
• Pacemaker Rhythms
• Lethal Rhythms and Emergency Management
• 12-Lead ECG Interpretation
• Pharmacology for Dysrhythmias
• Nursing Interventions and Prioritization
Introduction
This practice assessment is designed to strengthen ECG interpretation
and clinical decision-making for dysrhythmia management. It
emphasizes rhythm identification, prioritization, and evidence-based
interventions across acute care settings. Each item includes a rationale
,reinforcing electrophysiology, pharmacology, and safety principles. This
is an independent study tool and is not affiliated with or derived from
any proprietary Relias examination.
SECTION ONE: QUESTIONS 1–100
1. Identify the following rhythm:
text
R R R R R
| | | | |
P wave: P P P P P P P P
QRS: |‾| |‾| |‾| |‾| |‾|
Rate: 88 bpm
Rhythm: Regular
P:QRS ratio: 1:1
PR interval: 0.16 sec
QRS duration: 0.08 sec
A. Sinus bradycardia
B. Normal sinus rhythm
C. Sinus tachycardia
D. Junctional rhythm
Correct answer: B
RATIONALE: This is normal sinus rhythm. The rate is 60–100 bpm,
the rhythm is regular, each P wave precedes each QRS with a 1:1 ratio,
,the PR interval is within normal limits (0.12–0.20 sec), and the QRS is
narrow (less than 0.12 sec).
2. Identify the following rhythm:
text
R R R R
| | | |
P wave: P P P P P
QRS: |‾| |‾| |‾| |‾|
Rate: 52 bpm
Rhythm: Regular
P:QRS ratio: 1:1
PR interval: 0.18 sec
QRS duration: 0.08 sec
A. Sinus tachycardia
B. Sinus bradycardia
C. Normal sinus rhythm
D. First-degree heart block
Correct answer: B
RATIONALE: This is sinus bradycardia. The rhythm is regular, P
waves are present with a 1:1 ratio, and the PR and QRS intervals are
normal. The defining feature is a rate below 60 bpm.
, 3. Identify the following rhythm:
text
R R R R R R R R R R
| | | | | | | | | |
P wave: P P P P P P P P P P P P P P P P P P
QRS: |‾| |‾| |‾| |‾| |‾| |‾| |‾| |‾| |‾| |‾|
Rate: 128 bpm
Rhythm: Regular
P:QRS ratio: 1:1
PR interval: 0.14 sec
QRS duration: 0.08 sec
A. Sinus bradycardia
B. Normal sinus rhythm
C. Sinus tachycardia
D. Atrial flutter
Correct answer: C
RATIONALE: This is sinus tachycardia. The rhythm is regular, P
waves are present with a 1:1 ratio, and the PR and QRS intervals are
normal. The defining feature is a rate above 100 bpm.
4. A patient has a heart rate of 42 bpm, is dizzy, and has a blood
pressure of 86/50 mmHg. What is the priority nursing action?
A. Administer atropine as ordered
B. Encourage ambulation
Test Bank with Answers | ECG Interpretation,
Cardiac Rhythm Analysis, PEA, V-Tach, A-Fib,
Heart Blocks | NCLEX & Nursing Exam Prep
(NURS 332, NUR 211)
Core Domains
• Sinus Rhythms
• Atrial Dysrhythmias
• Junctional Rhythms
• Ventricular Dysrhythmias
• Heart Blocks
• Pacemaker Rhythms
• Lethal Rhythms and Emergency Management
• 12-Lead ECG Interpretation
• Pharmacology for Dysrhythmias
• Nursing Interventions and Prioritization
Introduction
This practice assessment is designed to strengthen ECG interpretation
and clinical decision-making for dysrhythmia management. It
emphasizes rhythm identification, prioritization, and evidence-based
interventions across acute care settings. Each item includes a rationale
,reinforcing electrophysiology, pharmacology, and safety principles. This
is an independent study tool and is not affiliated with or derived from
any proprietary Relias examination.
SECTION ONE: QUESTIONS 1–100
1. Identify the following rhythm:
text
R R R R R
| | | | |
P wave: P P P P P P P P
QRS: |‾| |‾| |‾| |‾| |‾|
Rate: 88 bpm
Rhythm: Regular
P:QRS ratio: 1:1
PR interval: 0.16 sec
QRS duration: 0.08 sec
A. Sinus bradycardia
B. Normal sinus rhythm
C. Sinus tachycardia
D. Junctional rhythm
Correct answer: B
RATIONALE: This is normal sinus rhythm. The rate is 60–100 bpm,
the rhythm is regular, each P wave precedes each QRS with a 1:1 ratio,
,the PR interval is within normal limits (0.12–0.20 sec), and the QRS is
narrow (less than 0.12 sec).
2. Identify the following rhythm:
text
R R R R
| | | |
P wave: P P P P P
QRS: |‾| |‾| |‾| |‾|
Rate: 52 bpm
Rhythm: Regular
P:QRS ratio: 1:1
PR interval: 0.18 sec
QRS duration: 0.08 sec
A. Sinus tachycardia
B. Sinus bradycardia
C. Normal sinus rhythm
D. First-degree heart block
Correct answer: B
RATIONALE: This is sinus bradycardia. The rhythm is regular, P
waves are present with a 1:1 ratio, and the PR and QRS intervals are
normal. The defining feature is a rate below 60 bpm.
, 3. Identify the following rhythm:
text
R R R R R R R R R R
| | | | | | | | | |
P wave: P P P P P P P P P P P P P P P P P P
QRS: |‾| |‾| |‾| |‾| |‾| |‾| |‾| |‾| |‾| |‾|
Rate: 128 bpm
Rhythm: Regular
P:QRS ratio: 1:1
PR interval: 0.14 sec
QRS duration: 0.08 sec
A. Sinus bradycardia
B. Normal sinus rhythm
C. Sinus tachycardia
D. Atrial flutter
Correct answer: C
RATIONALE: This is sinus tachycardia. The rhythm is regular, P
waves are present with a 1:1 ratio, and the PR and QRS intervals are
normal. The defining feature is a rate above 100 bpm.
4. A patient has a heart rate of 42 bpm, is dizzy, and has a blood
pressure of 86/50 mmHg. What is the priority nursing action?
A. Administer atropine as ordered
B. Encourage ambulation
