2026/2027 RELIAS ADVANCED
DYSRHYTHMIA EXAM A: THE ELITE
TEST BANK
PART 0: THE NAVIGATOR
● PART I: THE PRIMER (Rules of Engagement & Critical Thresholds)
● PART II: THE ELITE TEST BANK
○ Questions 1–15: Foundational Syntax & Application (Rhythm Definitions,
Intervals, Hard Deck Metrics)
○ Questions 16–40: Professional Simulation (ACLS 2026/2027 Guidelines,
Pacemaker Troubleshooting, Acute Interventions)
○ Questions 41–66: Grandmaster Synthesis (TCAI Protocols, Pulsed Field
Ablation, Genetic Arrhythmias, Multi-System Crises)
PART I: THE PRIMER
Mastering advanced dysrhythmia interpretation is not merely about passing a competency test;
it is about recognizing the precise microsecond an electrical anomaly transitions into a lethal
hemodynamic collapse. You are here to build reflexive, deadly accurate clinical intuition for the
2026/2027 standard of care.
● The "Panic Button" Cheat Sheet:
○ Atropine 2026 Standard: 1.0 mg IV push (max 3.0 mg). Legacy 0.5 mg dosing is
obsolete and dangerous.
○ Junctional vs. Idioventricular: Junctional = Narrow QRS (<0.12s),
hidden/inverted P, rate 40-60. Idioventricular = Wide QRS (>0.12s), no P, rate <40.
○ The 6-Second Rule: For irregular rhythms (e.g., Atrial Fibrillation), you MUST
count R waves in a 6-second strip and multiply by 10. Do not use the 1500 method.
○ Pacemaker Malfunctions: Failure to Sense = Spikes landing arbitrarily (R-on-T
risk). Failure to Capture = Spikes with no QRS following.
○ Cardioversion 2026 Standard: Higher first-shock energy (≥200 J) is mandated for
Atrial Fibrillation to reduce cumulative myocardial stunning.
PART II: THE ELITE TEST BANK
Questions 1–15: Foundational Syntax & Application
Q1: You are evaluating a 6-second telemetry strip of a patient with known chronic atrial
fibrillation. You observe 9 QRS complexes with visibly variable R-R intervals. Which method is
the MOST APPROPRIATE for calculating this patient's ventricular rate? A) Count the small
boxes between the shortest R-R interval and divide into 1500. B) Count the large boxes
,between R-R intervals and divide into 300. C) Count the total number of R waves in the
6-second strip and multiply by 10. D) Count the number of fibrillatory waves and multiply by 10.
● The Answer: C (Count the total number of R waves in the 6-second strip and multiply by
10.)
● Distractor Analysis:
○ A is incorrect: The 1500 method requires a perfectly regular rhythm. Using it on an
irregularly irregular rhythm will yield mathematically false clinical data. * B is
incorrect: The 300 sequence method also strictly requires regular R-R intervals.
○ D is incorrect: Fibrillatory waves represent atrial chaos, not the ventricular rate
(perfusion rate), and are inherently unmeasurable.
The Mentor's Analysis: Irregularity demands averaging. The 6-second method provides a
functional mean ventricular response. Professional Intuition: Never rely on the machine's
digital readout for Afib; it frequently averages too short a window, masking clinically significant
rapid ventricular responses (RVR).
Q2: A patient presents to the telemetry unit. The monitor displays a regular rhythm, a rate of 52
bpm, a PR interval of 0.16 seconds, and a QRS duration of 0.08 seconds. Upright P waves
precede every QRS. What is the DEFINITIVE diagnosis? A) Normal Sinus Rhythm B) Sinus
Bradycardia C) Junctional Escape Rhythm D) First-Degree AV Block
● The Answer: B (Sinus Bradycardia)
● Distractor Analysis:
○ A is incorrect: While morphology is normal, the rate falls below the 60 bpm
threshold for Normal Sinus Rhythm.
○ C is incorrect: Junctional rhythms exhibit inverted, absent, or retrograde P waves,
not upright sinus P waves.
○ D is incorrect: A first-degree block requires a PR interval strictly greater than 0.20
seconds.
The Mentor's Analysis: You must compartmentalize the data. Morphology dictates the origin
(Sinus), and rate dictates the classification (Bradycardia). Professional Intuition: A rate of 52 is
bradycardic, but if the patient is asymptomatic, it is merely a physiological observation, not a
clinical crisis. Treat the patient, not the number.
Q3: You identify a rhythm with a regular atrial and ventricular rate of 75 bpm. The PR interval
measures 0.26 seconds consistently across the strip. The QRS duration is 0.10 seconds. What
is the PRIMARY rhythm abnormality? A) Second-Degree AV Block Type I B) First-Degree AV
Block C) Sinus Rhythm with Bundle Branch Block D) Accelerated Junctional Rhythm
● The Answer: B (First-Degree AV Block)
● Distractor Analysis:
○ A is incorrect: Type I requires progressive PR lengthening and a dropped beat. This
PR is constant.
○ C is incorrect: A Bundle Branch Block requires a QRS width of 0.12 seconds or
greater.
○ D is incorrect: Junctional rhythms lack normal, consistent P waves with prolonged
PR intervals.
The Mentor's Analysis: A First-Degree Block is not truly a "block"—it is a uniform conduction
delay through the AV node. Professional Intuition: When you see a prolonged PR,
immediately audit the patient's medication list for beta-blockers, calcium channel blockers, or
digoxin. It is often iatrogenic.
Q4: A patient's ECG reveals a cyclic pattern: the PR interval progressively lengthens over three
consecutive beats until a P wave appears without a subsequent QRS complex. The pattern then
, resets. Which dysrhythmia is MOST LIKELY occurring? A) Second-Degree AV Block, Mobitz
Type II B) Third-Degree (Complete) AV Block C) Second-Degree AV Block, Mobitz Type I
(Wenckebach) D) Premature Atrial Contractions with Non-Conduction
● The Answer: C (Second-Degree AV Block, Mobitz Type I (Wenckebach))
● Distractor Analysis:
○ A is incorrect: Mobitz II features a constant PR interval before the dropped beat, not
progressive lengthening.
○ B is incorrect: Third-degree block features total AV dissociation, not a resetting
pattern.
○ D is incorrect: Blocked PACs occur prematurely; Wenckebach occurs on a
predictable sinus schedule.
The Mentor's Analysis: "Long, longer, longest, drop." This represents progressive fatigue of
the AV node cells until one impulse is totally blocked. Professional Intuition: Mobitz I is usually
benign, nodal, and transient (often related to inferior MI ischemia). Mobitz II is structural,
infranodal, and highly lethal.
Q5: The telemetry strip shows a regular atrial rate of 80 bpm. The ventricular rate is 40 bpm.
The PR interval on the conducted beats is fixed at 0.18 seconds. Every alternative P wave is not
followed by a QRS complex. What is the IMMEDIATE rhythm identification? A) Sinus
Bradycardia with frequent PVCs B) Second-Degree AV Block, Mobitz Type II C) Third-Degree
AV Block D) Idioventricular Rhythm
● The Answer: B (Second-Degree AV Block, Mobitz Type II)
● Distractor Analysis:
○ A is incorrect: There are no premature wide complexes indicating PVCs.
○ C is incorrect: In third-degree block, PR intervals vary wildly because atria and
ventricles are totally divorced. Here, the PR is fixed on conducted beats.
○ D is incorrect: Idioventricular rhythms lack P waves entirely and have wide QRS
complexes.
The Mentor's Analysis: Mobitz II with a 2:1 conduction ratio is a treacherous rhythm. The
constant PR interval on the conducted beats proves the pathway is intact when it fires, but the
disease lies below the AV node (Bundle of His/Purkinje). Professional Intuition: Assume this
will deteriorate to a Complete Heart Block. Prep the transcutaneous pacing pads immediately.
Q6: You note a rhythm where the P-P intervals are perfectly regular at 90 bpm, and the R-R
intervals are perfectly regular at 38 bpm. There is absolutely no constant mathematical
relationship between the P waves and the QRS complexes. What is the DEFINITIVE diagnosis?
A) Complete (Third-Degree) AV Block B) Second-Degree AV Block, Mobitz Type I C) Sinus
Bradycardia with AV Dissociation D) Accelerated Junctional Rhythm
● The Answer: A (Complete (Third-Degree) AV Block)
● Distractor Analysis:
○ B is incorrect: Mobitz I has a relationship (progressive lengthening).
○ C is incorrect: AV dissociation is a mechanical symptom, but Complete Heart Block
is the definitive structural diagnosis for this specific independent dual-pacing.
○ D is incorrect: Junctional rhythms do not feature independent, regular sinus P
waves marching straight through the QRS complexes.
The Mentor's Analysis: The atria and ventricles are divorced. The AV node has completely
failed, and a lower escape pacemaker has taken over. Professional Intuition: Never push
Atropine for a wide-complex Third-Degree Block; it acts on the AV node and will do nothing for
an infranodal block. Proceed directly to pacing.
Q7: A patient's rhythm strip reveals absent P waves, a regular R-R interval, a rate of 48 bpm,
DYSRHYTHMIA EXAM A: THE ELITE
TEST BANK
PART 0: THE NAVIGATOR
● PART I: THE PRIMER (Rules of Engagement & Critical Thresholds)
● PART II: THE ELITE TEST BANK
○ Questions 1–15: Foundational Syntax & Application (Rhythm Definitions,
Intervals, Hard Deck Metrics)
○ Questions 16–40: Professional Simulation (ACLS 2026/2027 Guidelines,
Pacemaker Troubleshooting, Acute Interventions)
○ Questions 41–66: Grandmaster Synthesis (TCAI Protocols, Pulsed Field
Ablation, Genetic Arrhythmias, Multi-System Crises)
PART I: THE PRIMER
Mastering advanced dysrhythmia interpretation is not merely about passing a competency test;
it is about recognizing the precise microsecond an electrical anomaly transitions into a lethal
hemodynamic collapse. You are here to build reflexive, deadly accurate clinical intuition for the
2026/2027 standard of care.
● The "Panic Button" Cheat Sheet:
○ Atropine 2026 Standard: 1.0 mg IV push (max 3.0 mg). Legacy 0.5 mg dosing is
obsolete and dangerous.
○ Junctional vs. Idioventricular: Junctional = Narrow QRS (<0.12s),
hidden/inverted P, rate 40-60. Idioventricular = Wide QRS (>0.12s), no P, rate <40.
○ The 6-Second Rule: For irregular rhythms (e.g., Atrial Fibrillation), you MUST
count R waves in a 6-second strip and multiply by 10. Do not use the 1500 method.
○ Pacemaker Malfunctions: Failure to Sense = Spikes landing arbitrarily (R-on-T
risk). Failure to Capture = Spikes with no QRS following.
○ Cardioversion 2026 Standard: Higher first-shock energy (≥200 J) is mandated for
Atrial Fibrillation to reduce cumulative myocardial stunning.
PART II: THE ELITE TEST BANK
Questions 1–15: Foundational Syntax & Application
Q1: You are evaluating a 6-second telemetry strip of a patient with known chronic atrial
fibrillation. You observe 9 QRS complexes with visibly variable R-R intervals. Which method is
the MOST APPROPRIATE for calculating this patient's ventricular rate? A) Count the small
boxes between the shortest R-R interval and divide into 1500. B) Count the large boxes
,between R-R intervals and divide into 300. C) Count the total number of R waves in the
6-second strip and multiply by 10. D) Count the number of fibrillatory waves and multiply by 10.
● The Answer: C (Count the total number of R waves in the 6-second strip and multiply by
10.)
● Distractor Analysis:
○ A is incorrect: The 1500 method requires a perfectly regular rhythm. Using it on an
irregularly irregular rhythm will yield mathematically false clinical data. * B is
incorrect: The 300 sequence method also strictly requires regular R-R intervals.
○ D is incorrect: Fibrillatory waves represent atrial chaos, not the ventricular rate
(perfusion rate), and are inherently unmeasurable.
The Mentor's Analysis: Irregularity demands averaging. The 6-second method provides a
functional mean ventricular response. Professional Intuition: Never rely on the machine's
digital readout for Afib; it frequently averages too short a window, masking clinically significant
rapid ventricular responses (RVR).
Q2: A patient presents to the telemetry unit. The monitor displays a regular rhythm, a rate of 52
bpm, a PR interval of 0.16 seconds, and a QRS duration of 0.08 seconds. Upright P waves
precede every QRS. What is the DEFINITIVE diagnosis? A) Normal Sinus Rhythm B) Sinus
Bradycardia C) Junctional Escape Rhythm D) First-Degree AV Block
● The Answer: B (Sinus Bradycardia)
● Distractor Analysis:
○ A is incorrect: While morphology is normal, the rate falls below the 60 bpm
threshold for Normal Sinus Rhythm.
○ C is incorrect: Junctional rhythms exhibit inverted, absent, or retrograde P waves,
not upright sinus P waves.
○ D is incorrect: A first-degree block requires a PR interval strictly greater than 0.20
seconds.
The Mentor's Analysis: You must compartmentalize the data. Morphology dictates the origin
(Sinus), and rate dictates the classification (Bradycardia). Professional Intuition: A rate of 52 is
bradycardic, but if the patient is asymptomatic, it is merely a physiological observation, not a
clinical crisis. Treat the patient, not the number.
Q3: You identify a rhythm with a regular atrial and ventricular rate of 75 bpm. The PR interval
measures 0.26 seconds consistently across the strip. The QRS duration is 0.10 seconds. What
is the PRIMARY rhythm abnormality? A) Second-Degree AV Block Type I B) First-Degree AV
Block C) Sinus Rhythm with Bundle Branch Block D) Accelerated Junctional Rhythm
● The Answer: B (First-Degree AV Block)
● Distractor Analysis:
○ A is incorrect: Type I requires progressive PR lengthening and a dropped beat. This
PR is constant.
○ C is incorrect: A Bundle Branch Block requires a QRS width of 0.12 seconds or
greater.
○ D is incorrect: Junctional rhythms lack normal, consistent P waves with prolonged
PR intervals.
The Mentor's Analysis: A First-Degree Block is not truly a "block"—it is a uniform conduction
delay through the AV node. Professional Intuition: When you see a prolonged PR,
immediately audit the patient's medication list for beta-blockers, calcium channel blockers, or
digoxin. It is often iatrogenic.
Q4: A patient's ECG reveals a cyclic pattern: the PR interval progressively lengthens over three
consecutive beats until a P wave appears without a subsequent QRS complex. The pattern then
, resets. Which dysrhythmia is MOST LIKELY occurring? A) Second-Degree AV Block, Mobitz
Type II B) Third-Degree (Complete) AV Block C) Second-Degree AV Block, Mobitz Type I
(Wenckebach) D) Premature Atrial Contractions with Non-Conduction
● The Answer: C (Second-Degree AV Block, Mobitz Type I (Wenckebach))
● Distractor Analysis:
○ A is incorrect: Mobitz II features a constant PR interval before the dropped beat, not
progressive lengthening.
○ B is incorrect: Third-degree block features total AV dissociation, not a resetting
pattern.
○ D is incorrect: Blocked PACs occur prematurely; Wenckebach occurs on a
predictable sinus schedule.
The Mentor's Analysis: "Long, longer, longest, drop." This represents progressive fatigue of
the AV node cells until one impulse is totally blocked. Professional Intuition: Mobitz I is usually
benign, nodal, and transient (often related to inferior MI ischemia). Mobitz II is structural,
infranodal, and highly lethal.
Q5: The telemetry strip shows a regular atrial rate of 80 bpm. The ventricular rate is 40 bpm.
The PR interval on the conducted beats is fixed at 0.18 seconds. Every alternative P wave is not
followed by a QRS complex. What is the IMMEDIATE rhythm identification? A) Sinus
Bradycardia with frequent PVCs B) Second-Degree AV Block, Mobitz Type II C) Third-Degree
AV Block D) Idioventricular Rhythm
● The Answer: B (Second-Degree AV Block, Mobitz Type II)
● Distractor Analysis:
○ A is incorrect: There are no premature wide complexes indicating PVCs.
○ C is incorrect: In third-degree block, PR intervals vary wildly because atria and
ventricles are totally divorced. Here, the PR is fixed on conducted beats.
○ D is incorrect: Idioventricular rhythms lack P waves entirely and have wide QRS
complexes.
The Mentor's Analysis: Mobitz II with a 2:1 conduction ratio is a treacherous rhythm. The
constant PR interval on the conducted beats proves the pathway is intact when it fires, but the
disease lies below the AV node (Bundle of His/Purkinje). Professional Intuition: Assume this
will deteriorate to a Complete Heart Block. Prep the transcutaneous pacing pads immediately.
Q6: You note a rhythm where the P-P intervals are perfectly regular at 90 bpm, and the R-R
intervals are perfectly regular at 38 bpm. There is absolutely no constant mathematical
relationship between the P waves and the QRS complexes. What is the DEFINITIVE diagnosis?
A) Complete (Third-Degree) AV Block B) Second-Degree AV Block, Mobitz Type I C) Sinus
Bradycardia with AV Dissociation D) Accelerated Junctional Rhythm
● The Answer: A (Complete (Third-Degree) AV Block)
● Distractor Analysis:
○ B is incorrect: Mobitz I has a relationship (progressive lengthening).
○ C is incorrect: AV dissociation is a mechanical symptom, but Complete Heart Block
is the definitive structural diagnosis for this specific independent dual-pacing.
○ D is incorrect: Junctional rhythms do not feature independent, regular sinus P
waves marching straight through the QRS complexes.
The Mentor's Analysis: The atria and ventricles are divorced. The AV node has completely
failed, and a lower escape pacemaker has taken over. Professional Intuition: Never push
Atropine for a wide-complex Third-Degree Block; it acts on the AV node and will do nothing for
an infranodal block. Proceed directly to pacing.
Q7: A patient's rhythm strip reveals absent P waves, a regular R-R interval, a rate of 48 bpm,
