NR 547 CEA EXAM – QUESTIONS AND ANSWERS | VERIFIED AND WELL DETAILED
ANSWERS | PLUS RATIONALES | GUARANTEED PASS | LATEST EXAM UPDATE
CORE DOMAINS
Cardiac electrophysiology fundamentals
ECG interpretation and arrhythmia recognition
Antiarrhythmic pharmacology
Hemodynamic monitoring
Cardiac device management (pacemakers, ICDs)
Advanced cardiac life support principles
Clinical decision-making in arrhythmias
Patient safety and ethical practice
Emergency cardiovascular interventions
INTRODUCTION
This examination assesses advanced knowledge and clinical reasoning in cardiac
electrophysiology and arrhythmia management. It evaluates the ability to interpret
electrocardiographic findings, apply evidence-based interventions, and manage
pharmacologic and device-based therapies. Candidates are tested using multiple-choice
and scenario-based questions that reflect real-world clinical decision-making. The exam
emphasizes patient safety, ethical considerations, and rapid clinical judgment in acute and
,chronic cardiovascular conditions. It is designed to measure both theoretical
understanding and practical application in advanced nursing practice within cardiac care
environments.
SECTION ONE: QUESTIONS 1–50
Question 1
Which ECG finding is most consistent with atrial fibrillation?
A. Regular P waves with constant PR interval
B. Absence of P waves with irregularly irregular rhythm
C. Sawtooth flutter waves with regular rhythm
D. Wide QRS complexes with tachycardia
🟢 Correct Answer: B. Absence of P waves with irregularly irregular rhythm
🔴 Explanation: Atrial fibrillation is characterized by disorganized atrial activity, no
identifiable P waves, and an irregularly irregular ventricular response.
,Question 2
The primary action of amiodarone is:
A. Calcium channel blockade
B. Sodium channel blockade only
C. Potassium channel blockade prolonging repolarization
D. Beta-1 receptor stimulation
🟢 Correct Answer: C. Potassium channel blockade prolonging repolarization
🔴 Explanation: Amiodarone primarily prolongs phase 3 repolarization by blocking
potassium channels, increasing refractory period.
Question 3
A patient with ventricular tachycardia and no pulse requires:
A. Oral beta-blocker
B. Immediate synchronized cardioversion
C. Defibrillation without synchronization
D. Vagal maneuvers
🟢 Correct Answer: C. Defibrillation without synchronization
, 🔴 Explanation: Pulseless VT is a shockable rhythm requiring immediate unsynchronized
defibrillation.
Question 4
Which electrolyte imbalance increases risk for digoxin toxicity?
A. Hypernatremia
B. Hypokalemia
C. Hypercalcemia
D. Hypermagnesemia
🟢 Correct Answer: B. Hypokalemia
🔴 Explanation: Low potassium enhances digoxin binding to Na+/K+ ATPase, increasing
toxicity risk.
Question 5
First-line treatment for stable supraventricular tachycardia is:
A. Amiodarone infusion
B. Adenosine rapid IV push
ANSWERS | PLUS RATIONALES | GUARANTEED PASS | LATEST EXAM UPDATE
CORE DOMAINS
Cardiac electrophysiology fundamentals
ECG interpretation and arrhythmia recognition
Antiarrhythmic pharmacology
Hemodynamic monitoring
Cardiac device management (pacemakers, ICDs)
Advanced cardiac life support principles
Clinical decision-making in arrhythmias
Patient safety and ethical practice
Emergency cardiovascular interventions
INTRODUCTION
This examination assesses advanced knowledge and clinical reasoning in cardiac
electrophysiology and arrhythmia management. It evaluates the ability to interpret
electrocardiographic findings, apply evidence-based interventions, and manage
pharmacologic and device-based therapies. Candidates are tested using multiple-choice
and scenario-based questions that reflect real-world clinical decision-making. The exam
emphasizes patient safety, ethical considerations, and rapid clinical judgment in acute and
,chronic cardiovascular conditions. It is designed to measure both theoretical
understanding and practical application in advanced nursing practice within cardiac care
environments.
SECTION ONE: QUESTIONS 1–50
Question 1
Which ECG finding is most consistent with atrial fibrillation?
A. Regular P waves with constant PR interval
B. Absence of P waves with irregularly irregular rhythm
C. Sawtooth flutter waves with regular rhythm
D. Wide QRS complexes with tachycardia
🟢 Correct Answer: B. Absence of P waves with irregularly irregular rhythm
🔴 Explanation: Atrial fibrillation is characterized by disorganized atrial activity, no
identifiable P waves, and an irregularly irregular ventricular response.
,Question 2
The primary action of amiodarone is:
A. Calcium channel blockade
B. Sodium channel blockade only
C. Potassium channel blockade prolonging repolarization
D. Beta-1 receptor stimulation
🟢 Correct Answer: C. Potassium channel blockade prolonging repolarization
🔴 Explanation: Amiodarone primarily prolongs phase 3 repolarization by blocking
potassium channels, increasing refractory period.
Question 3
A patient with ventricular tachycardia and no pulse requires:
A. Oral beta-blocker
B. Immediate synchronized cardioversion
C. Defibrillation without synchronization
D. Vagal maneuvers
🟢 Correct Answer: C. Defibrillation without synchronization
, 🔴 Explanation: Pulseless VT is a shockable rhythm requiring immediate unsynchronized
defibrillation.
Question 4
Which electrolyte imbalance increases risk for digoxin toxicity?
A. Hypernatremia
B. Hypokalemia
C. Hypercalcemia
D. Hypermagnesemia
🟢 Correct Answer: B. Hypokalemia
🔴 Explanation: Low potassium enhances digoxin binding to Na+/K+ ATPase, increasing
toxicity risk.
Question 5
First-line treatment for stable supraventricular tachycardia is:
A. Amiodarone infusion
B. Adenosine rapid IV push
