RELIAS ADVANCED DYSRHYTHMIA
EXAM A: THE ELITE TEST BANK
(2026/2027 STANDARDS)
PART 0: THE NAVIGATOR
● PART I: THE PRIMER
● PART II: THE ELITE TEST BANK
○ Questions 1–15: Foundational Syntax & Application
○ Questions 16–40: Professional Simulation
○ Questions 41–66: Grandmaster Synthesis
PART I: THE PRIMER
Mastering advanced dysrhythmia and hemodynamics is not about achieving a passing
academic score; it is the absolute barrier to entry for keeping critically ill patients alive when their
myocardium fails. Deep, instantaneous pattern recognition separates the elite practitioner from
the novice during cardiovascular collapse.
The "Panic Button" Cheat Sheet:
● AHA 2025/2026 Bradycardia: Atropine 1 mg bolus (max 3 mg). If ineffective,
IMMEDIATELY transcutaneous pace, or start Dopamine (5-20 mcg/kg/min) / Epinephrine
(2-10 mcg/min).
● AHA 2025/2026 Tachycardia: Unstable = Synchronized Cardioversion (200J for Atrial
Fibrillation/Flutter; 100J for Monomorphic Ventricular Tachycardia). Stable Wide =
Amiodarone 150 mg over 10 minutes.
● Pacemaker Malfunctions: Spikes with no QRS = Failure to Capture. Spikes inside
QRS/T = Undersensing. No spikes when heart rate falls below the lower limit = Output
Failure.
● Hemodynamics (Swan-Ganz): Cardiogenic Shock = Cardiac Index (CI) < 2.2 L/min/m²,
Pulmonary Artery Wedge Pressure (PAWP) > 15 mmHg.
● Smith-Modified Sgarbossa: Identifies Occlusion Myocardial Infarction (OMI) in Left
Bundle Branch Block (LBBB) or paced rhythms via discordant ST elevation ≥ 25% of the
preceding S-wave depth.
PART II: THE ELITE TEST BANK
Questions 1–15: Foundational Syntax & Application
Q1: A practitioner is analyzing a 6-second electrocardiogram (ECG) rhythm strip. The PR
interval measures 0.24 seconds, the QRS complex measures 0.08 seconds, and there is a 1:1
ratio of P waves to QRS complexes. The rhythm is regular at 72 beats per minute. Which
interpretation is the MOST ACCURATE? A) Normal Sinus Rhythm (NSR) B) Sinus Rhythm with
,First-Degree Atrioventricular (AV) Block C) Sinus Rhythm with a Bundle Branch Block D)
Second-Degree AV Block, Mobitz Type I
● The Answer: B (Sinus Rhythm with First-Degree Atrioventricular (AV) Block)
● Distractor Analysis:
○ A is incorrect: A normal PR interval strictly ranges from 0.12 to 0.20 seconds. A
measurement of 0.24 seconds is definitively prolonged.
○ C is incorrect: A Bundle Branch Block alters the QRS duration (widening it to >0.12
seconds), not the PR interval.
○ D is incorrect: Mobitz Type I requires progressive PR lengthening culminating in a
dropped QRS complex.
The Mentor's Analysis: The accurate interpretation of dysrhythmias relies on meticulous
measurement, not visual approximation. A PR interval greater than 0.20 seconds (5 small
boxes) with no dropped beats establishes the diagnosis of a first-degree AV block. This
condition reflects delayed conduction through the AV node rather than a true blockade of the
electrical impulse. Professional Intuition: A first-degree block is a delay, not a true block. It
rarely requires intervention unless symptomatic bradycardia occurs, but it demands vigilance for
progression into higher-degree blocks.
Q2: A patient's rhythm strip reveals regular P-P intervals and regular R-R intervals, but there is
absolutely no correlation between the P waves and the QRS complexes. The atrial rate is 88
bpm and the ventricular rate is 38 bpm. What is the PRIMARY rhythm? A) Second-Degree AV
Block, Mobitz Type II B) Complete (Third-Degree) Heart Block C) Idioventricular Rhythm D)
Sinus Bradycardia with Premature Ventricular Contractions (PVCs)
● The Answer: B (Complete (Third-Degree) Heart Block)
● Distractor Analysis:
○ A is incorrect: Mobitz II maintains a constant PR interval for conducted beats, unlike
the complete AV dissociation seen in this scenario.
○ C is incorrect: While the ventricles are beating at an idioventricular rate (38 bpm),
an underlying idioventricular rhythm lacks P waves entirely. The presence of
dissociated P waves defines third-degree block.
○ D is incorrect: PVCs are early, wide beats, not a constant, independent ventricular
rhythm.
The Mentor's Analysis: Complete AV dissociation signifies that the atria and ventricles are
firing independently due to a total structural or ischemic blockade at the AV node. The Sinoatrial
(SA) node commands the atria at a rate of 88 bpm, while a lower, secondary pacemaker
assumes command of the ventricles at a life-sustaining rate of 38 bpm. Professional Intuition:
In third-degree block, Atropine is generally ineffective because the pharmacological target (the
AV node) is structurally bypassed. Prepare for immediate transcutaneous or transvenous
pacing.
Q3: When analyzing an ECG, the practitioner notes an irregularly irregular rhythm with an
undulating baseline, no discernible P waves, and a ventricular rate of 145 bpm. What is the
MOST APPROPRIATE rhythm identification? A) Atrial Flutter with Rapid Ventricular Response
(RVR) B) Ventricular Tachycardia (VT) C) Atrial Fibrillation with Rapid Ventricular Response
(RVR) D) Supraventricular Tachycardia (SVT)
● The Answer: C (Atrial Fibrillation with Rapid Ventricular Response (RVR))
● Distractor Analysis:
○ A is incorrect: Atrial flutter typically presents with a regular "sawtooth" baseline and
a measurable atrial rate, not an undulating, completely irregular baseline.
○ B is incorrect: VT presents with wide, bizarre QRS complexes, not the narrow
, complexes characteristic of a supraventricular rhythm.
○ D is incorrect: SVT manifests as a regular narrow-complex tachycardia, whereas
this rhythm is strictly irregularly irregular.
The Mentor's Analysis: An irregularly irregular R-R interval combined with absent P waves
forms the absolute diagnostic triad for Atrial Fibrillation. The rapid ventricular response (RVR)
indicates that the AV node is failing to filter the chaotic atrial impulses adequately. Professional
Intuition: When the rate exceeds 100 bpm, it is deemed RVR. Your immediate clinical priority
shifts from the rhythm itself to managing the hemodynamic compromise caused by the loss of
atrial kick and reduced ventricular filling time.
Q4: A patient’s ECG displays a regular rhythm with a heart rate of 160 bpm. The QRS complex
measures 0.08 seconds. P waves are hidden within the preceding T waves. Based on
2026/2027 standards, what is the MOST ACCURATE classification of this rhythm? A) Sinus
Tachycardia B) Supraventricular Tachycardia (SVT) C) Junctional Tachycardia D) Accelerated
Idioventricular Rhythm (AIVR)
● The Answer: B (Supraventricular Tachycardia (SVT))
● Distractor Analysis:
○ A is incorrect: Sinus tachycardia rarely exceeds 150 bpm in a resting adult and
typically features distinct, visible P waves.
○ C is incorrect: Junctional tachycardia generally tops out around 130-140 bpm and
often features inverted or retrograde P waves.
○ D is incorrect: AIVR is characterized by wide QRS complexes (>0.12s) and
operates at a rate of 40-100 bpm.
The Mentor's Analysis: Any regular, narrow-complex tachycardia exceeding 150 bpm where P
waves cannot be distinctly mapped is clinically blanketed under the term SVT until proven
otherwise. The narrow QRS confirms the origin is above the bifurcations of the Bundle of His.
Professional Intuition: Do not waste critical seconds attempting to locate a hidden P wave in a
rate of 160+ if the patient is unstable; execute the AHA Adult Tachycardia Algorithm
immediately.
Q5: An early beat is noted on a telemetry strip. The QRS complex is wide (0.16 seconds) and
bizarre, with a T wave deflecting in the opposite direction of the QRS. There is no preceding P
wave, and it is followed by a fully compensatory pause. What is this SPECIFIC ectopic beat? A)
Premature Atrial Contraction (PAC) B) Premature Junctional Contraction (PJC) C) Premature
Ventricular Contraction (PVC) D) Ventricular Escape Beat
● The Answer: C (Premature Ventricular Contraction (PVC))
● Distractor Analysis:
○ A is incorrect: PACs possess a narrow QRS and are preceded by an early,
abnormally shaped P wave.
○ B is incorrect: PJCs present with a narrow QRS and either an absent or inverted P
wave.
○ D is incorrect: An escape beat occurs late (after a pause to rescue the heart from
asystole), whereas a premature beat occurs early in the cardiac cycle.
The Mentor's Analysis: A wide, bizarre, early beat lacking a P wave perfectly defines a PVC.
Because the impulse originates in the ventricular muscle rather than the specialized conduction
system, depolarization is slow, resulting in a widened QRS complex. Professional Intuition:
Isolated PVCs are generally benign, but multifocal PVCs, R-on-T phenomena, or frequent
couplets demand immediate investigation for hypoxia, ongoing ischemia, or critical electrolyte
derangements (specifically potassium and magnesium).
Q6: A patient with a transvenous pacemaker exhibits pacing spikes that are consistently
EXAM A: THE ELITE TEST BANK
(2026/2027 STANDARDS)
PART 0: THE NAVIGATOR
● PART I: THE PRIMER
● PART II: THE ELITE TEST BANK
○ Questions 1–15: Foundational Syntax & Application
○ Questions 16–40: Professional Simulation
○ Questions 41–66: Grandmaster Synthesis
PART I: THE PRIMER
Mastering advanced dysrhythmia and hemodynamics is not about achieving a passing
academic score; it is the absolute barrier to entry for keeping critically ill patients alive when their
myocardium fails. Deep, instantaneous pattern recognition separates the elite practitioner from
the novice during cardiovascular collapse.
The "Panic Button" Cheat Sheet:
● AHA 2025/2026 Bradycardia: Atropine 1 mg bolus (max 3 mg). If ineffective,
IMMEDIATELY transcutaneous pace, or start Dopamine (5-20 mcg/kg/min) / Epinephrine
(2-10 mcg/min).
● AHA 2025/2026 Tachycardia: Unstable = Synchronized Cardioversion (200J for Atrial
Fibrillation/Flutter; 100J for Monomorphic Ventricular Tachycardia). Stable Wide =
Amiodarone 150 mg over 10 minutes.
● Pacemaker Malfunctions: Spikes with no QRS = Failure to Capture. Spikes inside
QRS/T = Undersensing. No spikes when heart rate falls below the lower limit = Output
Failure.
● Hemodynamics (Swan-Ganz): Cardiogenic Shock = Cardiac Index (CI) < 2.2 L/min/m²,
Pulmonary Artery Wedge Pressure (PAWP) > 15 mmHg.
● Smith-Modified Sgarbossa: Identifies Occlusion Myocardial Infarction (OMI) in Left
Bundle Branch Block (LBBB) or paced rhythms via discordant ST elevation ≥ 25% of the
preceding S-wave depth.
PART II: THE ELITE TEST BANK
Questions 1–15: Foundational Syntax & Application
Q1: A practitioner is analyzing a 6-second electrocardiogram (ECG) rhythm strip. The PR
interval measures 0.24 seconds, the QRS complex measures 0.08 seconds, and there is a 1:1
ratio of P waves to QRS complexes. The rhythm is regular at 72 beats per minute. Which
interpretation is the MOST ACCURATE? A) Normal Sinus Rhythm (NSR) B) Sinus Rhythm with
,First-Degree Atrioventricular (AV) Block C) Sinus Rhythm with a Bundle Branch Block D)
Second-Degree AV Block, Mobitz Type I
● The Answer: B (Sinus Rhythm with First-Degree Atrioventricular (AV) Block)
● Distractor Analysis:
○ A is incorrect: A normal PR interval strictly ranges from 0.12 to 0.20 seconds. A
measurement of 0.24 seconds is definitively prolonged.
○ C is incorrect: A Bundle Branch Block alters the QRS duration (widening it to >0.12
seconds), not the PR interval.
○ D is incorrect: Mobitz Type I requires progressive PR lengthening culminating in a
dropped QRS complex.
The Mentor's Analysis: The accurate interpretation of dysrhythmias relies on meticulous
measurement, not visual approximation. A PR interval greater than 0.20 seconds (5 small
boxes) with no dropped beats establishes the diagnosis of a first-degree AV block. This
condition reflects delayed conduction through the AV node rather than a true blockade of the
electrical impulse. Professional Intuition: A first-degree block is a delay, not a true block. It
rarely requires intervention unless symptomatic bradycardia occurs, but it demands vigilance for
progression into higher-degree blocks.
Q2: A patient's rhythm strip reveals regular P-P intervals and regular R-R intervals, but there is
absolutely no correlation between the P waves and the QRS complexes. The atrial rate is 88
bpm and the ventricular rate is 38 bpm. What is the PRIMARY rhythm? A) Second-Degree AV
Block, Mobitz Type II B) Complete (Third-Degree) Heart Block C) Idioventricular Rhythm D)
Sinus Bradycardia with Premature Ventricular Contractions (PVCs)
● The Answer: B (Complete (Third-Degree) Heart Block)
● Distractor Analysis:
○ A is incorrect: Mobitz II maintains a constant PR interval for conducted beats, unlike
the complete AV dissociation seen in this scenario.
○ C is incorrect: While the ventricles are beating at an idioventricular rate (38 bpm),
an underlying idioventricular rhythm lacks P waves entirely. The presence of
dissociated P waves defines third-degree block.
○ D is incorrect: PVCs are early, wide beats, not a constant, independent ventricular
rhythm.
The Mentor's Analysis: Complete AV dissociation signifies that the atria and ventricles are
firing independently due to a total structural or ischemic blockade at the AV node. The Sinoatrial
(SA) node commands the atria at a rate of 88 bpm, while a lower, secondary pacemaker
assumes command of the ventricles at a life-sustaining rate of 38 bpm. Professional Intuition:
In third-degree block, Atropine is generally ineffective because the pharmacological target (the
AV node) is structurally bypassed. Prepare for immediate transcutaneous or transvenous
pacing.
Q3: When analyzing an ECG, the practitioner notes an irregularly irregular rhythm with an
undulating baseline, no discernible P waves, and a ventricular rate of 145 bpm. What is the
MOST APPROPRIATE rhythm identification? A) Atrial Flutter with Rapid Ventricular Response
(RVR) B) Ventricular Tachycardia (VT) C) Atrial Fibrillation with Rapid Ventricular Response
(RVR) D) Supraventricular Tachycardia (SVT)
● The Answer: C (Atrial Fibrillation with Rapid Ventricular Response (RVR))
● Distractor Analysis:
○ A is incorrect: Atrial flutter typically presents with a regular "sawtooth" baseline and
a measurable atrial rate, not an undulating, completely irregular baseline.
○ B is incorrect: VT presents with wide, bizarre QRS complexes, not the narrow
, complexes characteristic of a supraventricular rhythm.
○ D is incorrect: SVT manifests as a regular narrow-complex tachycardia, whereas
this rhythm is strictly irregularly irregular.
The Mentor's Analysis: An irregularly irregular R-R interval combined with absent P waves
forms the absolute diagnostic triad for Atrial Fibrillation. The rapid ventricular response (RVR)
indicates that the AV node is failing to filter the chaotic atrial impulses adequately. Professional
Intuition: When the rate exceeds 100 bpm, it is deemed RVR. Your immediate clinical priority
shifts from the rhythm itself to managing the hemodynamic compromise caused by the loss of
atrial kick and reduced ventricular filling time.
Q4: A patient’s ECG displays a regular rhythm with a heart rate of 160 bpm. The QRS complex
measures 0.08 seconds. P waves are hidden within the preceding T waves. Based on
2026/2027 standards, what is the MOST ACCURATE classification of this rhythm? A) Sinus
Tachycardia B) Supraventricular Tachycardia (SVT) C) Junctional Tachycardia D) Accelerated
Idioventricular Rhythm (AIVR)
● The Answer: B (Supraventricular Tachycardia (SVT))
● Distractor Analysis:
○ A is incorrect: Sinus tachycardia rarely exceeds 150 bpm in a resting adult and
typically features distinct, visible P waves.
○ C is incorrect: Junctional tachycardia generally tops out around 130-140 bpm and
often features inverted or retrograde P waves.
○ D is incorrect: AIVR is characterized by wide QRS complexes (>0.12s) and
operates at a rate of 40-100 bpm.
The Mentor's Analysis: Any regular, narrow-complex tachycardia exceeding 150 bpm where P
waves cannot be distinctly mapped is clinically blanketed under the term SVT until proven
otherwise. The narrow QRS confirms the origin is above the bifurcations of the Bundle of His.
Professional Intuition: Do not waste critical seconds attempting to locate a hidden P wave in a
rate of 160+ if the patient is unstable; execute the AHA Adult Tachycardia Algorithm
immediately.
Q5: An early beat is noted on a telemetry strip. The QRS complex is wide (0.16 seconds) and
bizarre, with a T wave deflecting in the opposite direction of the QRS. There is no preceding P
wave, and it is followed by a fully compensatory pause. What is this SPECIFIC ectopic beat? A)
Premature Atrial Contraction (PAC) B) Premature Junctional Contraction (PJC) C) Premature
Ventricular Contraction (PVC) D) Ventricular Escape Beat
● The Answer: C (Premature Ventricular Contraction (PVC))
● Distractor Analysis:
○ A is incorrect: PACs possess a narrow QRS and are preceded by an early,
abnormally shaped P wave.
○ B is incorrect: PJCs present with a narrow QRS and either an absent or inverted P
wave.
○ D is incorrect: An escape beat occurs late (after a pause to rescue the heart from
asystole), whereas a premature beat occurs early in the cardiac cycle.
The Mentor's Analysis: A wide, bizarre, early beat lacking a P wave perfectly defines a PVC.
Because the impulse originates in the ventricular muscle rather than the specialized conduction
system, depolarization is slow, resulting in a widened QRS complex. Professional Intuition:
Isolated PVCs are generally benign, but multifocal PVCs, R-on-T phenomena, or frequent
couplets demand immediate investigation for hypoxia, ongoing ischemia, or critical electrolyte
derangements (specifically potassium and magnesium).
Q6: A patient with a transvenous pacemaker exhibits pacing spikes that are consistently
