ELIAS ADVANCED DYSRHYTHMIA
COMPREHENSIVE EXAM QUESTIONS
AND ANSWERS
1. A patient presents with a heart rate of 150 bpm, a narrow QRS complex, and no visible P
waves. The rhythm is regular. Which medication is the primary choice for initial
pharmacological intervention?
A. Amiodarone 150mg IV bolus
B. Atropine 1mg IV push
C. Epinephrine 1mg IV push
D. Adenosine 6mg rapid IV push
Answer: D
Conceptual Explanation: For stable Supraventricular Tachycardia (SVT), Adenosine is the
first-line medication to attempt rhythm conversion.
2. In a Lead II ECG tracing, a rhythm shows a constant PR interval of 0.24 seconds with a 1:1 P
to QRS ratio. How is this classified?
A. Second-Degree AV Block Type I
B. Normal Sinus Rhythm
,C. First-Degree AV Block
D. Junctional Rhythm
Answer: C
Conceptual Explanation: First-degree AV block is defined by a prolonged PR interval
(greater than 0.20 seconds) that remains constant.
3. Which rhythm is characterized by a ‘sawtooth’ pattern of F-waves and a typical atrial rate
of 250-350 bpm?
A. Atrial Fibrillation
B. Atrial Flutter
C. Ventricular Tachycardia
D. Sinus Tachycardia
Answer: B
Conceptual Explanation: Atrial flutter is recognized by its distinct sawtooth pattern (F-
waves) and regular atrial discharge rate.
4. What is the definitive treatment for a patient in pulseless Ventricular Fibrillation (VF)?
A. Synchronized Cardioversion
B. Carotid Massage
C. Unsynchronized Defibrillation
, D. Transcutaneous Pacing
Answer: C
Conceptual Explanation: VF requires immediate unsynchronized defibrillation to attempt
to restore a perfusing rhythm.
5. A rhythm strip shows a progressive lengthening of the PR interval until a QRS complex is
dropped. This is known as:
A. Mobitz II Second-Degree Block
B. Third-Degree AV Block
C. Sinus Arrest
D. Mobitz I (Wenckebach)
Answer: D
Conceptual Explanation: Mobitz I (Wenckebach) is identified by the cyclic lengthening of
the PR interval followed by a dropped beat.
6. What is the intrinsic rate of the Atrioventricular (AV) node?
A. 40-60 bpm
B. 20-40 bpm
C. 60-100 bpm
D. 100-150 bpm
COMPREHENSIVE EXAM QUESTIONS
AND ANSWERS
1. A patient presents with a heart rate of 150 bpm, a narrow QRS complex, and no visible P
waves. The rhythm is regular. Which medication is the primary choice for initial
pharmacological intervention?
A. Amiodarone 150mg IV bolus
B. Atropine 1mg IV push
C. Epinephrine 1mg IV push
D. Adenosine 6mg rapid IV push
Answer: D
Conceptual Explanation: For stable Supraventricular Tachycardia (SVT), Adenosine is the
first-line medication to attempt rhythm conversion.
2. In a Lead II ECG tracing, a rhythm shows a constant PR interval of 0.24 seconds with a 1:1 P
to QRS ratio. How is this classified?
A. Second-Degree AV Block Type I
B. Normal Sinus Rhythm
,C. First-Degree AV Block
D. Junctional Rhythm
Answer: C
Conceptual Explanation: First-degree AV block is defined by a prolonged PR interval
(greater than 0.20 seconds) that remains constant.
3. Which rhythm is characterized by a ‘sawtooth’ pattern of F-waves and a typical atrial rate
of 250-350 bpm?
A. Atrial Fibrillation
B. Atrial Flutter
C. Ventricular Tachycardia
D. Sinus Tachycardia
Answer: B
Conceptual Explanation: Atrial flutter is recognized by its distinct sawtooth pattern (F-
waves) and regular atrial discharge rate.
4. What is the definitive treatment for a patient in pulseless Ventricular Fibrillation (VF)?
A. Synchronized Cardioversion
B. Carotid Massage
C. Unsynchronized Defibrillation
, D. Transcutaneous Pacing
Answer: C
Conceptual Explanation: VF requires immediate unsynchronized defibrillation to attempt
to restore a perfusing rhythm.
5. A rhythm strip shows a progressive lengthening of the PR interval until a QRS complex is
dropped. This is known as:
A. Mobitz II Second-Degree Block
B. Third-Degree AV Block
C. Sinus Arrest
D. Mobitz I (Wenckebach)
Answer: D
Conceptual Explanation: Mobitz I (Wenckebach) is identified by the cyclic lengthening of
the PR interval followed by a dropped beat.
6. What is the intrinsic rate of the Atrioventricular (AV) node?
A. 40-60 bpm
B. 20-40 bpm
C. 60-100 bpm
D. 100-150 bpm
