ELIAS ADVANCED DYSRHYTHMIA
EXAM A COMPREHENSIVE
ASSESSMENT QUESTIONS AND
ANSWERS
1. Which characteristic best describes a third-degree atrioventricular (AV) block?
A. Complete dissociation between atrial and ventricular activities.
B. A constant PR interval with intermittent dropped QRS complexes.
C. A progressively lengthening PR interval followed by a dropped QRS complex.
D. A fixed PR interval greater than 0.20 seconds with every P wave conducted.
Answer: A
Conceptual Explanation: In third-degree AV block, there is no relationship between P
waves and QRS complexes because the electrical signal is completely blocked at the AV
node or below.
2. What is the recommended initial dose of Adenosine for a patient in stable Supraventricular
Tachycardia (SVT)?
A. 3 mg rapid IV push
,B. 6 mg rapid IV push
C. 12 mg rapid IV push
D. 1 mg rapid IV push
Answer: B
Conceptual Explanation: The standard first dose of Adenosine for stable SVT is 6 mg rapid
IV push followed by a saline flush.
3. In a patient with Torsades de Pointes, which medication is considered the treatment of
choice?
A. Amiodarone
B. Epinephrine
C. Magnesium Sulfate
D. Lidocaine
Answer: C
Conceptual Explanation: Magnesium Sulfate is the drug of choice for treating Torsades de
Pointes, even if the patient has normal magnesium levels.
4. A patient presents with a regular narrow-complex tachycardia at a rate of 190 bpm. They
are hypotensive and altered. What is the priority intervention?
A. Synchronized cardioversion
B. Adenosine 6mg IV
, C. Vagal maneuvers
D. Unsynchronized defibrillation
Answer: A
Conceptual Explanation: Unstable patients with tachycardia (hypotension, altered mental
status) require immediate synchronized cardioversion.
5. Which ECG finding is most characteristic of Hyperkalemia?
A. Prominent U waves
B. Shortened QT interval
C. Tall, peaked T waves
D. ST-segment depression
Answer: C
Conceptual Explanation: Hyperkalemia typically presents with tall, narrow, peaked T
waves as an early sign.
6. In Second-Degree AV Block Type II (Mobitz II), where does the block usually occur?
A. SA node
B. Bundle of His or Bundle Branches
C. AV node
D. Purkinje fibers
EXAM A COMPREHENSIVE
ASSESSMENT QUESTIONS AND
ANSWERS
1. Which characteristic best describes a third-degree atrioventricular (AV) block?
A. Complete dissociation between atrial and ventricular activities.
B. A constant PR interval with intermittent dropped QRS complexes.
C. A progressively lengthening PR interval followed by a dropped QRS complex.
D. A fixed PR interval greater than 0.20 seconds with every P wave conducted.
Answer: A
Conceptual Explanation: In third-degree AV block, there is no relationship between P
waves and QRS complexes because the electrical signal is completely blocked at the AV
node or below.
2. What is the recommended initial dose of Adenosine for a patient in stable Supraventricular
Tachycardia (SVT)?
A. 3 mg rapid IV push
,B. 6 mg rapid IV push
C. 12 mg rapid IV push
D. 1 mg rapid IV push
Answer: B
Conceptual Explanation: The standard first dose of Adenosine for stable SVT is 6 mg rapid
IV push followed by a saline flush.
3. In a patient with Torsades de Pointes, which medication is considered the treatment of
choice?
A. Amiodarone
B. Epinephrine
C. Magnesium Sulfate
D. Lidocaine
Answer: C
Conceptual Explanation: Magnesium Sulfate is the drug of choice for treating Torsades de
Pointes, even if the patient has normal magnesium levels.
4. A patient presents with a regular narrow-complex tachycardia at a rate of 190 bpm. They
are hypotensive and altered. What is the priority intervention?
A. Synchronized cardioversion
B. Adenosine 6mg IV
, C. Vagal maneuvers
D. Unsynchronized defibrillation
Answer: A
Conceptual Explanation: Unstable patients with tachycardia (hypotension, altered mental
status) require immediate synchronized cardioversion.
5. Which ECG finding is most characteristic of Hyperkalemia?
A. Prominent U waves
B. Shortened QT interval
C. Tall, peaked T waves
D. ST-segment depression
Answer: C
Conceptual Explanation: Hyperkalemia typically presents with tall, narrow, peaked T
waves as an early sign.
6. In Second-Degree AV Block Type II (Mobitz II), where does the block usually occur?
A. SA node
B. Bundle of His or Bundle Branches
C. AV node
D. Purkinje fibers
