Atrial Rhythms Quiz

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Question 1 of 8

1. Question
1. An ECG characteristic described as a sawtooth appearance is seen in which one of the following cardiac arrhythmias?
- a. First-degree atrioventricular block
- b. Premature atrial beats
- c. Torsades de pointes
- d. Paroxysmal atrial tachycardia with atrioventricular block
Correct

Incorrect
Question 2 of 8

2. Question
2. An ECG tracing that shows an abnormally long R-R interval followed by a QRS complex with an rSr’ configuration without any compensatory pause is brought about by which aberration in atrial fibrillation?
- a. Premature ventricular contraction
- b. Ashman beat
- c. Bundle branch block
- d. Premature atrial contraction
Correct

Incorrect
Question 3 of 8

3. Question
3. Refer to the ECG tracing below from a 61-year-old woman with no subjective complaints. Which one of the following cardiac arrhythmias produces this ECG finding?
- a. Third-degree atrioventricular block
- b. Atrial flutter
- c. Atrial fibrillation
- d. Atrioventricular nodal re-entrant tachycardia
Correct

Incorrect
Question 4 of 8

4. Question
4. Which of the following findings are distinct for arrhythmias that are atrial in origin?
- a. QRS complex < 0.12 seconds
- b. PR interval 0.12–0.2 seconds
- c. Irregular R-R intervals
- d. All of the abovementioned findings represent arrhythmias originating in the atria
Correct

Incorrect
Question 5 of 8

5. Question
5. Which of the following rhythms is caused by an irritable focus within the atria that has overcome the sinoatrial node. The rate is 150–250 bpm, and the rhythm is regular, with a P wave morphology that varies and may sometimes be buried within the T wave, a PR interval of 0.12 seconds, and a QRS complex < 0.12 seconds?
- a. Premature atrial contraction
- b. Atrial tachycardia
- c. Supraventricular tachycardia
- d. Atrial flutter
Correct

Incorrect
Question 6 of 8

6. Question
6. Which one of the following arrhythmias is produced by an intensely irritable focus causing a rate > 250 bpm with a saw-tooth appearance due to the cyclic pattern of impulse generation creating a series of atrial waves?
- a. Wandering pacemaker
- b. Atrial tachycardia
- c. Atrial flutter
- d. Atrial fibrillation
Correct

Incorrect
Question 7 of 8

7. Question
7. Which one of the following atrial arrhythmias is intensely irritable to the point where the atria are merely quivering and no longer beating?
- a. Atrial flutter
- b. Atrial fibrillation
- c. Wandering pacemaker
- d. Premature atrial contraction
Correct

Incorrect
Question 8 of 8

8. Question
8. Which one of the following interventions is not used to treat atrial fibrillation?
- a. Electroconversion
- b. Calcium channel blockers
- c. Digoxin
- d. Corticosteroids
Correct

Incorrect