RELIAS DYSRHYTHMIA BASIC A & B –
COMPLETE 2025/2026 TEST BANK WITH
ANSWERS | ECG INTERPRETATION, CARDIAC
RHYTHM ANALYSIS, PEA, V-TACH, A-FIB,
HEART BLOCKS | NCLEX & NURSING EXAM
PREP (NURS 332, NUR 211)
Section One: Questions 1-100
Question 1
The nurse reviews the following ECG strip: Regular rhythm, rate 150
beats/min, narrow QRS complexes, no visible P waves, sawtooth pattern
between QRS complexes. What rhythm is this?
A. Atrial fibrillation
B. Atrial flutter
C. Sinus tachycardia
D. Ventricular tachycardia
Correct answer B. Atrial flutter
, RATIONALE: The sawtooth pattern (F waves) with a regular atrial
rate of 250-350 and a ventricular rate of 150 (2:1 conduction) is
characteristic of atrial flutter.
Question 2
The nurse reviews the following ECG strip: Irregularly irregular rhythm,
rate 120 beats/min, no discernible P waves, chaotic baseline, narrow
QRS complexes. What rhythm is this?
A. Atrial flutter
B. Sinus arrhythmia
C. Atrial fibrillation
D. Multifocal atrial tachycardia
Correct answer C. Atrial fibrillation
RATIONALE: An irregularly irregular rhythm with no P waves and
a chaotic baseline is the hallmark of atrial fibrillation.
Question 3
The nur
,se reviews the following ECG strip: Regular rhythm, rate 40 beats/min,
P waves present and upright, PR interval 0.16 sec, QRS 0.08 sec, every
P wave followed by a QRS. What rhythm is this?
A. Sinus bradycardia
B. Junctional rhythm
C. First-degree heart block
D. Normal sinus rhythm
Correct answer A. Sinus bradycardia
RATIONALE: Sinus bradycardia has a regular rhythm, rate less than
60, normal P waves, and a normal PR interval with each P wave
conducting to a QRS.
A patient is on a cardiac monitor and suddenly develops a rhythm with
no P waves, a wide QRS, and a rate of 180 beats/min. The patient is
unresponsive and pulseless. What is the priority action?
A. Administer adenosine 6 mg IV push
B. Begin CPR and prepare for defibrillation
C. Perform synchronized cardioversion
D. Administer amiodarone 150 mg IV
Correct answer B. Begin CPR and prepare for defibrillation
, RATIONALE: Pulseless ventricular tachycardia requires immediate
CPR and defibrillation. Adenosine and cardioversion are for stable
patients with a pulse.
A patient with atrial fibrillation is prescribed diltiazem. Which
assessment finding indicates a therapeutic response?
A. Heart rate decreased from 140 to 88 beats/min
B. Blood pressure increased from 100/60 to 130/80 mm Hg
C. Urine output decreased to 20 mL/hr
D. Respiratory rate increased to 28 breaths/min
Correct answer A. Heart rate decreased from 140 to 88 beats/min
RATIONALE: Diltiazem is used for rate control in atrial fibrillation.
A decrease in heart rate to less than 100 beats/min indicates therapeutic
effect.
A nurse is teaching a patient about warfarin therapy for atrial fibrillation.
Which statement indicates understanding?
A. "I will need to have my INR checked regularly."
B. "I can take aspirin for headaches without concern."
C. "I should increase my intake of green leafy vegetables."
D. "I will stop the medication if I notice any bruising."
Correct answer A. "I will need to have my INR checked regularly."
RATIONALE: Warfarin requires regular INR monitoring to ensure
therapeutic anticoagulation and prevent bleeding or clotting.
A patient develops pulseless electrical activity (PEA). Which
intervention is the priority?
A. Defibrillation
B. High-quality CPR and epinephrine
COMPLETE 2025/2026 TEST BANK WITH
ANSWERS | ECG INTERPRETATION, CARDIAC
RHYTHM ANALYSIS, PEA, V-TACH, A-FIB,
HEART BLOCKS | NCLEX & NURSING EXAM
PREP (NURS 332, NUR 211)
Section One: Questions 1-100
Question 1
The nurse reviews the following ECG strip: Regular rhythm, rate 150
beats/min, narrow QRS complexes, no visible P waves, sawtooth pattern
between QRS complexes. What rhythm is this?
A. Atrial fibrillation
B. Atrial flutter
C. Sinus tachycardia
D. Ventricular tachycardia
Correct answer B. Atrial flutter
, RATIONALE: The sawtooth pattern (F waves) with a regular atrial
rate of 250-350 and a ventricular rate of 150 (2:1 conduction) is
characteristic of atrial flutter.
Question 2
The nurse reviews the following ECG strip: Irregularly irregular rhythm,
rate 120 beats/min, no discernible P waves, chaotic baseline, narrow
QRS complexes. What rhythm is this?
A. Atrial flutter
B. Sinus arrhythmia
C. Atrial fibrillation
D. Multifocal atrial tachycardia
Correct answer C. Atrial fibrillation
RATIONALE: An irregularly irregular rhythm with no P waves and
a chaotic baseline is the hallmark of atrial fibrillation.
Question 3
The nur
,se reviews the following ECG strip: Regular rhythm, rate 40 beats/min,
P waves present and upright, PR interval 0.16 sec, QRS 0.08 sec, every
P wave followed by a QRS. What rhythm is this?
A. Sinus bradycardia
B. Junctional rhythm
C. First-degree heart block
D. Normal sinus rhythm
Correct answer A. Sinus bradycardia
RATIONALE: Sinus bradycardia has a regular rhythm, rate less than
60, normal P waves, and a normal PR interval with each P wave
conducting to a QRS.
A patient is on a cardiac monitor and suddenly develops a rhythm with
no P waves, a wide QRS, and a rate of 180 beats/min. The patient is
unresponsive and pulseless. What is the priority action?
A. Administer adenosine 6 mg IV push
B. Begin CPR and prepare for defibrillation
C. Perform synchronized cardioversion
D. Administer amiodarone 150 mg IV
Correct answer B. Begin CPR and prepare for defibrillation
, RATIONALE: Pulseless ventricular tachycardia requires immediate
CPR and defibrillation. Adenosine and cardioversion are for stable
patients with a pulse.
A patient with atrial fibrillation is prescribed diltiazem. Which
assessment finding indicates a therapeutic response?
A. Heart rate decreased from 140 to 88 beats/min
B. Blood pressure increased from 100/60 to 130/80 mm Hg
C. Urine output decreased to 20 mL/hr
D. Respiratory rate increased to 28 breaths/min
Correct answer A. Heart rate decreased from 140 to 88 beats/min
RATIONALE: Diltiazem is used for rate control in atrial fibrillation.
A decrease in heart rate to less than 100 beats/min indicates therapeutic
effect.
A nurse is teaching a patient about warfarin therapy for atrial fibrillation.
Which statement indicates understanding?
A. "I will need to have my INR checked regularly."
B. "I can take aspirin for headaches without concern."
C. "I should increase my intake of green leafy vegetables."
D. "I will stop the medication if I notice any bruising."
Correct answer A. "I will need to have my INR checked regularly."
RATIONALE: Warfarin requires regular INR monitoring to ensure
therapeutic anticoagulation and prevent bleeding or clotting.
A patient develops pulseless electrical activity (PEA). Which
intervention is the priority?
A. Defibrillation
B. High-quality CPR and epinephrine
