Multiple-choice questions about Cardioversion indications along with their answers
Question 1:
When is synchronized cardioversion indicated?
A) Unstable ventricular tachycardia
B) Asymptomatic atrial fibrillation
C) Symptomatic supraventricular tachycardia
D) Stable ventricular tachycardia
Answer: C) Symptomatic supraventricular tachycardia
Question 2:
Which condition warrants immediate unsynchronized cardioversion?
A) Stable atrial flutter
B) Ventricular fibrillation
C) Asymptomatic ventricular tachycardia
D) Symptomatic atrial fibrillation
Answer: B) Ventricular fibrillation
Question 3:
In which situation is cardioversion contraindicated?
A) Hemodynamically stable atrial flutter
B) Unstable ventricular tachycardia
C) Persistent atrial fibrillation for 48 hours
D) Symptomatic supraventricular tachycardia
Answer: C) Persistent atrial fibrillation for 48 hours
Question 4:
What is the recommended initial energy setting for synchronized cardioversion in atrial fibrillation?
A) 50-100 joules
B) 200-300 joules
C) 360 joules
D) 1000 joules
Answer: C) 360 joules
Question 5:
In which scenario is chemical cardioversion preferred over electrical cardioversion?
A) Atrial fibrillation lasting for 24 hours
B) Hemodynamically stable ventricular tachycardia
C) Recurrent supraventricular tachycardia
D) Asymptomatic atrial flutter
Answer: C) Recurrent supraventricular tachycardia
Question 6:
Which antiarrhythmic medication is commonly used for chemical cardioversion of atrial fibrillation?
A) Amiodarone
B) Adenosine
C) Digoxin
D) Verapamil
Answer: A) Amiodarone
Question 7:
When is cardioversion typically avoided during pregnancy?
A) Uncontrolled atrial fibrillation
B) Persistent atrial flutter
C) Recurrent ventricular tachycardia
D) Asymptomatic supraventricular tachycardia
Answer: A) Uncontrolled atrial fibrillation
Question 8:
In patients with structural heart disease, which type of atrial fibrillation is cardioversion less likely to be successful?
A) Paroxysmal atrial fibrillation
B) Persistent atrial fibrillation
C) Chronic atrial fibrillation
D) Asymptomatic atrial fibrillation
Answer: C) Chronic atrial fibrillation
Question 9:
Which patient population is electrical cardioversion most commonly performed in?
A) Children under 5 years old
B) Young adults aged 20-30 years
C) Elderly individuals over 75 years old
D) Middle-aged individuals between 40-60 years
Answer: D) Middle-aged individuals between 40-60 years
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