CRAT Atrial Arrhythmia Identification 2

Question 1

Which atrial arrhythmia is characterized by a sawtooth pattern at a rate of 250-350 bpm on the ECG?

Accepted Answer

Atrial flutter

Answer

Atrial fibrillation

Answer

Atrial tachycardia

Answer

Multifocal atrial tachycardia

Question 2

In atrial fibrillation, which ECG finding is most characteristic?

Accepted Answer

Irregularly irregular rhythm with absent distinct P waves

Answer

Regular rhythm with sawtooth flutter waves

Answer

Regularly irregular rhythm with delta waves

Answer

Regular rhythm with prolonged PR interval

Question 3

A rhythm strip shows P wave morphology varying in at least three different shapes with an irregular rate above 100 bpm. What arrhythmia is present?

Accepted Answer

Multifocal atrial tachycardia

Answer

Atrial fibrillation

Answer

Wandering atrial pacemaker

Answer

Atrial flutter with variable block

Question 4

Paroxysmal supraventricular tachycardia (PSVT) most commonly has which ventricular rate range?

Accepted Answer

150-250 bpm

Answer

60-100 bpm

Answer

100-120 bpm

Answer

250-350 bpm

Question 5

A P wave with negative deflection in lead I and positive deflection in aVR most likely indicates which condition?

Accepted Answer

Ectopic atrial rhythm originating from the left atrium

Answer

Normal sinus rhythm

Answer

Right atrial enlargement

Answer

Junctional tachycardia

Question 6

Atrial flutter with 4:1 AV conduction produces a ventricular rate of approximately how many bpm if the atrial rate is 300 bpm?

Accepted Answer

75 bpm

Answer

150 bpm

Answer

100 bpm

Answer

50 bpm