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Basic Dysrhythmia Assessment A Test 35
Questions and Answers (Basic A
Dysrhythmia), 100% Guaranteed Pass ||
Complete A+ Guide
1. Regular rhythm, rate 78 bpm, P wave before each QRS,
PR
0.16 sec, QRS 0.08 sec.
Answer: Normal Sinus Rhythm (NSR)
Rationale: All normal criteria met: rate 60-100, regular, P:QRS
1:1, normal intervals.
2. Irregularly irregular rhythm, rate 150 bpm, no P waves,
narrow QRS.
Answer: Atrial Fibrillation
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Rationale: No organized atrial activity; irregular ventricular
response.
3. Regular rhythm, rate 48 bpm, P wave before each QRS,
PR
0.18 sec, QRS 0.10 sec.
Answer: Sinus Bradycardia
Rationale: Rate <60 bpm, otherwise normal.
4. Regular rhythm, rate 118 bpm, P wave before each QRS,
PR 0.16 sec, QRS 0.08 sec.
Answer: Sinus Tachycardia
Rationale: Rate >100 bpm, normal conduction.
5. Rhythm irregular, rate 180 bpm, sawtooth flutter waves,
QRS narrow.
Answer: Atrial Flutter (typical 2:1 block)
Rationale: Flutter waves (F waves) best seen in II, III, aVF.
6. Regular rhythm, rate 160 bpm, no visible P waves, narrow
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QRS, abrupt onset/offset.
Answer: Supraventricular Tachycardia (SVT) – AV nodal
reentry
Rationale: Regular narrow complex tachycardia without P
waves.
7. Regular rhythm, rate 42 bpm, no P waves, narrow QRS
(0.10 sec).
Answer: Junctional Rhythm
Rationale: Absent P waves (or inverted in inferior leads), rate
40-60.
8. Regular rhythm, rate 52 bpm, inverted P wave before
QRS,
PR 0.10 sec, QRS 0.08 sec.
Answer: Accelerated Junctional Rhythm
Rationale: Rate 60-100 is accelerated junctional; here 52 is
junctional rhythm (40-60).
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9. Regular rhythm, rate 32 bpm, wide QRS (0.14 sec), no P
waves.
Answer: Idioventricular Rhythm
Rationale: Rate 20-40 bpm, wide QRS, no atrial activity.
10. Regular rhythm, rate 68 bpm, wide QRS (0.14 sec), no P
waves.
Answer: Accelerated Idioventricular Rhythm (AIVR)
Rationale: Rate 40-100 bpm, wide QRS, common post-MI.
11. Rhythm: chaotic, irregular waveform, no identifiable
complexes, no pulse.
Answer: Ventricular Fibrillation (VF – coarse or fine)
Rationale: Disorganized ventricular activity; immediate
defibrillation.
12. Regular rhythm, rate 150 bpm, wide QRS (0.14 sec), no P
waves, monomorphic.
Basic Dysrhythmia Assessment A Test 35
Questions and Answers (Basic A
Dysrhythmia), 100% Guaranteed Pass ||
Complete A+ Guide
1. Regular rhythm, rate 78 bpm, P wave before each QRS,
PR
0.16 sec, QRS 0.08 sec.
Answer: Normal Sinus Rhythm (NSR)
Rationale: All normal criteria met: rate 60-100, regular, P:QRS
1:1, normal intervals.
2. Irregularly irregular rhythm, rate 150 bpm, no P waves,
narrow QRS.
Answer: Atrial Fibrillation
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Rationale: No organized atrial activity; irregular ventricular
response.
3. Regular rhythm, rate 48 bpm, P wave before each QRS,
PR
0.18 sec, QRS 0.10 sec.
Answer: Sinus Bradycardia
Rationale: Rate <60 bpm, otherwise normal.
4. Regular rhythm, rate 118 bpm, P wave before each QRS,
PR 0.16 sec, QRS 0.08 sec.
Answer: Sinus Tachycardia
Rationale: Rate >100 bpm, normal conduction.
5. Rhythm irregular, rate 180 bpm, sawtooth flutter waves,
QRS narrow.
Answer: Atrial Flutter (typical 2:1 block)
Rationale: Flutter waves (F waves) best seen in II, III, aVF.
6. Regular rhythm, rate 160 bpm, no visible P waves, narrow
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QRS, abrupt onset/offset.
Answer: Supraventricular Tachycardia (SVT) – AV nodal
reentry
Rationale: Regular narrow complex tachycardia without P
waves.
7. Regular rhythm, rate 42 bpm, no P waves, narrow QRS
(0.10 sec).
Answer: Junctional Rhythm
Rationale: Absent P waves (or inverted in inferior leads), rate
40-60.
8. Regular rhythm, rate 52 bpm, inverted P wave before
QRS,
PR 0.10 sec, QRS 0.08 sec.
Answer: Accelerated Junctional Rhythm
Rationale: Rate 60-100 is accelerated junctional; here 52 is
junctional rhythm (40-60).
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9. Regular rhythm, rate 32 bpm, wide QRS (0.14 sec), no P
waves.
Answer: Idioventricular Rhythm
Rationale: Rate 20-40 bpm, wide QRS, no atrial activity.
10. Regular rhythm, rate 68 bpm, wide QRS (0.14 sec), no P
waves.
Answer: Accelerated Idioventricular Rhythm (AIVR)
Rationale: Rate 40-100 bpm, wide QRS, common post-MI.
11. Rhythm: chaotic, irregular waveform, no identifiable
complexes, no pulse.
Answer: Ventricular Fibrillation (VF – coarse or fine)
Rationale: Disorganized ventricular activity; immediate
defibrillation.
12. Regular rhythm, rate 150 bpm, wide QRS (0.14 sec), no P
waves, monomorphic.
