Relias Advanced Dysrhythmia Exam B Actual Exam
2026/2027 | 52 Questions with Verified Answers |
100% Correct | Pass Guaranteed
SECTION 1: Complex Atrial & Junctional Dysrhythmias (12 Questions)
Q1:
EKG Description: Rhythm: Irregularly irregular. Rate: 120 bpm. P waves: None
discernible; baseline undulation. PR: Not measurable. QRS: Narrow (0.08 s). ST/T:
Fibrillatory waves visible.
A. Multifocal atrial tachycardia
B. Atrial fibrillation with rapid ventricular response
C. Atrial flutter 2:1
D. Sinus tachycardia with PACs
Correct Answer: B
Rationale:
1. Rhythm – irregularly irregular.
2. Rate – 120 (>100 = RVR).
3. P waves – absent, fibrillatory baseline.
4. PR – none.
5. QRS – narrow.
6. Interpretation – A-fib RVR.
7. Clinical – control rate (β-blocker), anticoagulate, search sepsis/PE.
,Q2:
EKG Description: Rhythm: Irregular with grouped beating. Rate: 85 bpm. P waves: ≥3
morphologies in same lead. PR: Varies. QRS: Narrow (0.08 s).
A. Sinus arrhythmia
B. Wandering atrial pacemaker (WAP)
C. Atrial flutter
D. MAT
Correct Answer: B
Rationale:
1. Rhythm – irregular.
2. Rate – 85 (<100).
3. P waves – ≥3 shapes (diagnostic for WAP/MAT).
4. PR – variable.
5. QRS – narrow.
6. Interpretation – WAP (same as MAT but rate <100).
7. Clinical – benign in COPD; observe.
Q3:
EKG Description: Rhythm: Regular. Rate: 150 bpm. P waves: Saw-tooth flutter waves 300
min⁻¹; 2:1 conduction. PR: Not measurable. QRS: Narrow (0.08 s).
A. Sinus tachycardia
B. Atrial flutter 2:1
C. A-fib RVR
,D. SVT
Correct Answer: B
Rationale:
1. Regular narrow tachycardia.
2. Rate 150 (300 ÷ 2).
3. Saw-tooth baseline = flutter.
4. PR absent.
5. QRS narrow.
6. Flutter 2:1.
7. Control rate (β-blocker), anticoagulate if risk factors, consider
ibutilide/cardioversion.
Q4:
EKG Description: Rhythm: Regular narrow complex 180 bpm; sudden onset/offset. P
waves: Retrograde (after QRS). PR: Short (<0.12 s). QRS: Narrow (0.07 s).
A. Sinus tachycardia
B. Paroxysmal supraventricular tachycardia (AVNRT)
C. Atrial fibrillation
D. Atrial flutter 1:1
Correct Answer: B
Rationale:
1. Regular narrow 180 bpm.
2. Retrograde P (short RP) typical AVNRT.
3. Sudden onset/offset = paroxysmal.
4. Vagal maneuvers → adenosine if unstable.
, Q5:
EKG Description: Rhythm: Regular. Rate: 55 bpm. P waves: Inverted in II, upright aVR;
before QRS; PR 0.10 s. QRS: Narrow (0.08 s).
A. Sinus bradycardia
B. Low-atrial rhythm
C. Junctional rhythm
D. 1° AV block
Correct Answer: B
Rationale:
1. Regular bradycardia.
2. Inverted P II = low-atrial/coronary sinus focus; P before QRS distinguishes from
junctional.
3. Observe if asymptomatic.
Q6:
EKG Description: Rhythm: Regular. Rate: 45 bpm. P waves: Absent (or retrograde
hidden). PR: Not measurable. QRS: Narrow (0.08 s).
A. Sinus bradycardia
B. Junctional rhythm
C. 2° AV block
D. Idioventricular rhythm
2026/2027 | 52 Questions with Verified Answers |
100% Correct | Pass Guaranteed
SECTION 1: Complex Atrial & Junctional Dysrhythmias (12 Questions)
Q1:
EKG Description: Rhythm: Irregularly irregular. Rate: 120 bpm. P waves: None
discernible; baseline undulation. PR: Not measurable. QRS: Narrow (0.08 s). ST/T:
Fibrillatory waves visible.
A. Multifocal atrial tachycardia
B. Atrial fibrillation with rapid ventricular response
C. Atrial flutter 2:1
D. Sinus tachycardia with PACs
Correct Answer: B
Rationale:
1. Rhythm – irregularly irregular.
2. Rate – 120 (>100 = RVR).
3. P waves – absent, fibrillatory baseline.
4. PR – none.
5. QRS – narrow.
6. Interpretation – A-fib RVR.
7. Clinical – control rate (β-blocker), anticoagulate, search sepsis/PE.
,Q2:
EKG Description: Rhythm: Irregular with grouped beating. Rate: 85 bpm. P waves: ≥3
morphologies in same lead. PR: Varies. QRS: Narrow (0.08 s).
A. Sinus arrhythmia
B. Wandering atrial pacemaker (WAP)
C. Atrial flutter
D. MAT
Correct Answer: B
Rationale:
1. Rhythm – irregular.
2. Rate – 85 (<100).
3. P waves – ≥3 shapes (diagnostic for WAP/MAT).
4. PR – variable.
5. QRS – narrow.
6. Interpretation – WAP (same as MAT but rate <100).
7. Clinical – benign in COPD; observe.
Q3:
EKG Description: Rhythm: Regular. Rate: 150 bpm. P waves: Saw-tooth flutter waves 300
min⁻¹; 2:1 conduction. PR: Not measurable. QRS: Narrow (0.08 s).
A. Sinus tachycardia
B. Atrial flutter 2:1
C. A-fib RVR
,D. SVT
Correct Answer: B
Rationale:
1. Regular narrow tachycardia.
2. Rate 150 (300 ÷ 2).
3. Saw-tooth baseline = flutter.
4. PR absent.
5. QRS narrow.
6. Flutter 2:1.
7. Control rate (β-blocker), anticoagulate if risk factors, consider
ibutilide/cardioversion.
Q4:
EKG Description: Rhythm: Regular narrow complex 180 bpm; sudden onset/offset. P
waves: Retrograde (after QRS). PR: Short (<0.12 s). QRS: Narrow (0.07 s).
A. Sinus tachycardia
B. Paroxysmal supraventricular tachycardia (AVNRT)
C. Atrial fibrillation
D. Atrial flutter 1:1
Correct Answer: B
Rationale:
1. Regular narrow 180 bpm.
2. Retrograde P (short RP) typical AVNRT.
3. Sudden onset/offset = paroxysmal.
4. Vagal maneuvers → adenosine if unstable.
, Q5:
EKG Description: Rhythm: Regular. Rate: 55 bpm. P waves: Inverted in II, upright aVR;
before QRS; PR 0.10 s. QRS: Narrow (0.08 s).
A. Sinus bradycardia
B. Low-atrial rhythm
C. Junctional rhythm
D. 1° AV block
Correct Answer: B
Rationale:
1. Regular bradycardia.
2. Inverted P II = low-atrial/coronary sinus focus; P before QRS distinguishes from
junctional.
3. Observe if asymptomatic.
Q6:
EKG Description: Rhythm: Regular. Rate: 45 bpm. P waves: Absent (or retrograde
hidden). PR: Not measurable. QRS: Narrow (0.08 s).
A. Sinus bradycardia
B. Junctional rhythm
C. 2° AV block
D. Idioventricular rhythm
