Electrical Therapy Quiz

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Question 1 of 8

1. Question
1. A patient was successfully defibrillated, terminating pulseless ventricular tachycardia. One minute later, the patient again goes into ventricular tachycardia and loses his pulse. A shock should be delivered at:
- a. The lowest energy level, building from there
- b. The highest energy level available
- c. The same energy that was successful initially
- d. 200 Joules
Correct

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Question 2 of 8

2. Question
2. An AED should be used when:
- a. The patient is unresponsive
- b. The patient is apneic or breathing abnormally (e.g., gasping)
- c. The patient does not have a pulse
- d. All of the above
Correct

Incorrect
Question 3 of 8

3. Question
3. Following successful defibrillation, most patients have a normal and adequately perfusing rhythm.
- a. Following successful defibrillation, most patients have a normal and adequately perfusing rhythm.
- b. Defibrillation works by stunning the heart, briefly terminating electrical activity, and allowing the heart's normal pacemaker to resume activity.
- c. The probability of successful defibrillation increases over time.
- d. Ventricular fibrillation rarely deteriorates to asystole.
Correct

Incorrect
Question 4 of 8

4. Question
4. Self-adhesive AED pads:
- a. Reduce the risk of arcing
- b. Reduce transthoracic impedance
- c. Permit monitoring of the patient's heart rhythm
- d. All of these
Correct

Incorrect
Question 5 of 8

5. Question
5. Shocks delivered to the patient in VF or pulseless VT should be:
- a. Unsynchronized
- b. Synchronized
- c. Either synchronized or unsynchronized as long as the patient receives the shock
- d. Delayed until the patient has been provided with 3–5 minutes of high-quality CPR
Correct

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Question 6 of 8

6. Question
6. Synchronized cardioversion is recommended for:
- a. Monomorphic or polymorphic VT in an unstable patient
- b. Pulseless rhythms
- c. Unstable tachycardia with a pulse
- d. Polymorphic VT
Correct

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Question 7 of 8

7. Question
7. Which of the following patients is likely to require cardioversion?
- a. An otherwise healthy patient in atrial flutter with a heart rate of 150 bpm and no symptoms aside from palpitations
- b. A patient with new-onset atrial fibrillation at a rate of 155 bpm with acute shortness of breath, hypotension, and pulmonary edema
- c. An adolescent patient with a high fever and a heart rate of 130 bpm
- d. A patient with known paroxysmal supraventricular tachycardia with a history of responding well to IV adenosine
Correct

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Question 8 of 8

8. Question
8. Which of the following statements regarding synchronized cardioversion is INCORRECT?
- a. In synchronized cardioversion, the shock is delivered at the peak of the R wave, which avoids delivery of the shock during repolarization.
- b. Low-energy shocks should always be delivered as synchronized shocks to avoid precipitating VF.
- c. Synchronization can take longer than defibrillation because the sensor must detect the peak of the R waves.
- d. Synchronized cardioversion requires a higher energy level than defibrillation.
Correct

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