KP RHYTHM INTERPRETATION ASSESSMENT |
QUESTIONS, CORRECT ANSWERS & RATIONALES
| ECG/EKG NURSING REVIEW | 2026/2027 UPDATED
140 Questions with Answers and Detailed Rationales
100 PERCENT GUARANTEED PASS
INSTANT DOWNLOAD ANSWERS INCLUDED
IMPORTANCE OF THIS DOCUMENT
This comprehensive examination preparation guide has been meticulously developed to help you succeed in the
KP RHYTHM INTERPRETATION ASSESSMENT | QUESTIONS, CORRECT ANSWERS & RATIONALES |
ECG/EKG NURSING REVIEW | 2026/2027 UPDATED. It contains 140 carefully selected questions that reflect
the most current exam content and testing strategies. Each question is accompanied by a correct answer and a
detailed rationale that explains the underlying pathophysiology, pharmacology, or clinical reasoning.
Self-Assessment – Test your knowledge and Exam Preparation – Familiarize yourself with the
identify areas requiring further question format and content
study areas
Concept Reinforcement – Deepen your Confidence Building – Develop test-taking
understanding through strategies and reduce
evidence-based exam anxiety
rationales
Time Management – Practice answering
questions under simulated
exam conditions
Review Summary 140 Questions
Foundations - Application - KP Rhythm Interpretation Assessment Correct & Rationales Ecg/ekg Nursing
Review 2026/2027 Updated Ecg/ekg Rhythm Interpretation Graduate
All answers with rationales
,Table of Contents
Content Area Questions Key Topics
Basic Ecg/ekg Interpretation 1-24 Tachycardia, Finding, Regular, Rhythm, Ventricular
Sinus Rhythms 25-48 Tachycardia, Finding, Ventricular, Patient S ECG, Regular
Atrial Rhythms 49-72 Tachycardia, Regular, Patient S, Rhythm, Appropriate
Junctional Rhythms 73-96 Tachycardia, Regular, Ventricular, Appropriate, Patient S
Ventricular Rhythms 97-120 Tachycardia, Likely, Regular, Rhythm, Wide-complex
AV Blocks 121-140 Tachycardia, Ventricular, Rhythm, Regular, Likely
TOTAL 140 All questions include answers and detailed rationales
,Section A - Basic Ecg/ekg Interpretation
Q1.
In a patient with third-degree AV block, which ECG finding is most indicative of a
junctional escape rhythm rather than a ventricular escape rhythm?
A. QRS duration less than 120 ms B. Ventricular rate between 20 and 40 bpm
C. Presence of retrograde P waves D. Irregular R-R intervals
Correct: A - QRS duration less than 120 ms
Rationale:A junctional escape rhythm originates above the bifurcation of the bundle of His, so
the QRS complex is narrow (<120 ms). A ventricular escape rhythm produces wide QRS
complexes. Retrograde P waves may occur in either, and rate ranges overlap.
Why the other answers are wrong:
B. Ventricular escape rhythms typically have a slower rate (20-40 bpm) but can overlap with
junctional rates (40-60 bpm), so rate alone is not diagnostic.
C. Retrograde P waves can occur in both junctional and ventricular rhythms when there is
retrograde conduction to the atria.
D. Both junctional and ventricular escape rhythms are usually regular; irregularity suggests an
underlying atrial rhythm or ectopy.
Reference: ACLS Provider Manual, 2023; ECG Interpretation: An Incredibly Easy! Pocket Guide, 2024.
Q2.
Which pharmacologic agent is most appropriate for a patient with symptomatic
bradycardia who is unresponsive to atropine?
A. Epinephrine infusion B. Dopamine infusion
C. Transcutaneous pacing D. Adenosine
Correct: C - Transcutaneous pacing
Rationale:According to the 2020 AHA guidelines, transcutaneous pacing is the definitive
treatment for symptomatic bradycardia unresponsive to atropine. Epinephrine and dopamine
are second-line medications if pacing is not available or ineffective. Adenosine is used for
tachyarrhythmias.
Why the other answers are wrong:
A. Epinephrine infusion is a second-line option if pacing fails or is unavailable, but pacing is
preferred.
B. Dopamine infusion is also second-line, not first-line after atropine failure.
D. Adenosine is used for supraventricular tachycardia, not bradycardia.
Reference: AHA Guidelines for CPR and ECC, 2020.
Page 3
, Section A - Basic Ecg/ekg Interpretation
Q3.
A patient presents with a regular wide-complex tachycardia. Which finding would most
strongly suggest a ventricular origin rather than supraventricular with aberrancy?
A. QRS axis in the right superior quadrant B. Presence of a P wave before each QRS
C. QRS duration of 120 ms D. Response to vagal maneuvers
Correct: A - QRS axis in the right superior quadrant
Rationale:A QRS axis in the right superior quadrant (northwest axis) is a strong indicator of
ventricular tachycardia. P waves before each QRS suggest AV dissociation is absent,
favoring SVT with aberrancy. QRS duration of 120 ms is borderline and not definitive. Vagal
maneuvers may terminate SVT but not VT.
Why the other answers are wrong:
B. If each QRS is preceded by a P wave, the rhythm is likely supraventricular with aberrancy.
C. QRS duration of 120 ms is the upper limit of normal and can be seen in both.
D. Vagal maneuvers are ineffective in VT and are used to diagnose SVT.
Reference: Brugada et al., 1991; Alpert, 2021.
Q4.
Which ECG finding is most characteristic of hyperkalemia and is considered a medical
emergency?
A. Peaked T waves B. ST-segment depression
C. U waves D. Shortened PR interval
Correct: A - Peaked T waves
Rationale:Peaked T waves are the earliest ECG sign of hyperkalemia. If untreated,
hyperkalemia can progress to cardiac arrest. ST-segment depression is nonspecific, U waves
are associated with hypokalemia, and a shortened PR interval is seen in
Lown-Ganong-Levine syndrome.
Why the other answers are wrong:
B. ST depression is seen in ischemia, not specifically hyperkalemia.
C. U waves are prominent in hypokalemia, not hyperkalemia.
D. Short PR interval is not a feature of hyperkalemia.
Reference: Lehne, R.A. (2026). Pharmacology for Nursing Care, 12th Ed., Ch. 14.
Q5.
A patient with atrial fibrillation has a ventricular rate of 140 bpm. Which intervention is
most appropriate to control the rate?
Page 4
QUESTIONS, CORRECT ANSWERS & RATIONALES
| ECG/EKG NURSING REVIEW | 2026/2027 UPDATED
140 Questions with Answers and Detailed Rationales
100 PERCENT GUARANTEED PASS
INSTANT DOWNLOAD ANSWERS INCLUDED
IMPORTANCE OF THIS DOCUMENT
This comprehensive examination preparation guide has been meticulously developed to help you succeed in the
KP RHYTHM INTERPRETATION ASSESSMENT | QUESTIONS, CORRECT ANSWERS & RATIONALES |
ECG/EKG NURSING REVIEW | 2026/2027 UPDATED. It contains 140 carefully selected questions that reflect
the most current exam content and testing strategies. Each question is accompanied by a correct answer and a
detailed rationale that explains the underlying pathophysiology, pharmacology, or clinical reasoning.
Self-Assessment – Test your knowledge and Exam Preparation – Familiarize yourself with the
identify areas requiring further question format and content
study areas
Concept Reinforcement – Deepen your Confidence Building – Develop test-taking
understanding through strategies and reduce
evidence-based exam anxiety
rationales
Time Management – Practice answering
questions under simulated
exam conditions
Review Summary 140 Questions
Foundations - Application - KP Rhythm Interpretation Assessment Correct & Rationales Ecg/ekg Nursing
Review 2026/2027 Updated Ecg/ekg Rhythm Interpretation Graduate
All answers with rationales
,Table of Contents
Content Area Questions Key Topics
Basic Ecg/ekg Interpretation 1-24 Tachycardia, Finding, Regular, Rhythm, Ventricular
Sinus Rhythms 25-48 Tachycardia, Finding, Ventricular, Patient S ECG, Regular
Atrial Rhythms 49-72 Tachycardia, Regular, Patient S, Rhythm, Appropriate
Junctional Rhythms 73-96 Tachycardia, Regular, Ventricular, Appropriate, Patient S
Ventricular Rhythms 97-120 Tachycardia, Likely, Regular, Rhythm, Wide-complex
AV Blocks 121-140 Tachycardia, Ventricular, Rhythm, Regular, Likely
TOTAL 140 All questions include answers and detailed rationales
,Section A - Basic Ecg/ekg Interpretation
Q1.
In a patient with third-degree AV block, which ECG finding is most indicative of a
junctional escape rhythm rather than a ventricular escape rhythm?
A. QRS duration less than 120 ms B. Ventricular rate between 20 and 40 bpm
C. Presence of retrograde P waves D. Irregular R-R intervals
Correct: A - QRS duration less than 120 ms
Rationale:A junctional escape rhythm originates above the bifurcation of the bundle of His, so
the QRS complex is narrow (<120 ms). A ventricular escape rhythm produces wide QRS
complexes. Retrograde P waves may occur in either, and rate ranges overlap.
Why the other answers are wrong:
B. Ventricular escape rhythms typically have a slower rate (20-40 bpm) but can overlap with
junctional rates (40-60 bpm), so rate alone is not diagnostic.
C. Retrograde P waves can occur in both junctional and ventricular rhythms when there is
retrograde conduction to the atria.
D. Both junctional and ventricular escape rhythms are usually regular; irregularity suggests an
underlying atrial rhythm or ectopy.
Reference: ACLS Provider Manual, 2023; ECG Interpretation: An Incredibly Easy! Pocket Guide, 2024.
Q2.
Which pharmacologic agent is most appropriate for a patient with symptomatic
bradycardia who is unresponsive to atropine?
A. Epinephrine infusion B. Dopamine infusion
C. Transcutaneous pacing D. Adenosine
Correct: C - Transcutaneous pacing
Rationale:According to the 2020 AHA guidelines, transcutaneous pacing is the definitive
treatment for symptomatic bradycardia unresponsive to atropine. Epinephrine and dopamine
are second-line medications if pacing is not available or ineffective. Adenosine is used for
tachyarrhythmias.
Why the other answers are wrong:
A. Epinephrine infusion is a second-line option if pacing fails or is unavailable, but pacing is
preferred.
B. Dopamine infusion is also second-line, not first-line after atropine failure.
D. Adenosine is used for supraventricular tachycardia, not bradycardia.
Reference: AHA Guidelines for CPR and ECC, 2020.
Page 3
, Section A - Basic Ecg/ekg Interpretation
Q3.
A patient presents with a regular wide-complex tachycardia. Which finding would most
strongly suggest a ventricular origin rather than supraventricular with aberrancy?
A. QRS axis in the right superior quadrant B. Presence of a P wave before each QRS
C. QRS duration of 120 ms D. Response to vagal maneuvers
Correct: A - QRS axis in the right superior quadrant
Rationale:A QRS axis in the right superior quadrant (northwest axis) is a strong indicator of
ventricular tachycardia. P waves before each QRS suggest AV dissociation is absent,
favoring SVT with aberrancy. QRS duration of 120 ms is borderline and not definitive. Vagal
maneuvers may terminate SVT but not VT.
Why the other answers are wrong:
B. If each QRS is preceded by a P wave, the rhythm is likely supraventricular with aberrancy.
C. QRS duration of 120 ms is the upper limit of normal and can be seen in both.
D. Vagal maneuvers are ineffective in VT and are used to diagnose SVT.
Reference: Brugada et al., 1991; Alpert, 2021.
Q4.
Which ECG finding is most characteristic of hyperkalemia and is considered a medical
emergency?
A. Peaked T waves B. ST-segment depression
C. U waves D. Shortened PR interval
Correct: A - Peaked T waves
Rationale:Peaked T waves are the earliest ECG sign of hyperkalemia. If untreated,
hyperkalemia can progress to cardiac arrest. ST-segment depression is nonspecific, U waves
are associated with hypokalemia, and a shortened PR interval is seen in
Lown-Ganong-Levine syndrome.
Why the other answers are wrong:
B. ST depression is seen in ischemia, not specifically hyperkalemia.
C. U waves are prominent in hypokalemia, not hyperkalemia.
D. Short PR interval is not a feature of hyperkalemia.
Reference: Lehne, R.A. (2026). Pharmacology for Nursing Care, 12th Ed., Ch. 14.
Q5.
A patient with atrial fibrillation has a ventricular rate of 140 bpm. Which intervention is
most appropriate to control the rate?
Page 4
