FREE CRAT Arrhythmia Recognition, Anatomy, and Physiology Questions and Answers

Question 1

Which of the following rhythms may be characterized by regular P-P and regular R-R intervals occurring at different rates?

Accepted Answer

Complete heart block

Answer

Wenckebach

Answer

Atrial fibrillation

Answer

First-degree heart block

Question 2

If a dual chamber pacemaker ventricular lead senses a non-cardiac signal, what is MOST LIKELY to occur?

Accepted Answer

Failure to ventricular pace

Answer

Atrial under sensing

Answer

Failure to capture ventricle

Answer

Inappropriate atrial pacing

Question 3

What cardiac rhythm is shown in this presenting rhythm strip from a trans telephonic pacemaker check?

Accepted Answer

Paced atrial rhythm

Answer

Sinus rhythm

Answer

Atrial fibrillation

Answer

Paced ventricular rhythm

Question 4

A characteristic of a third-degree AVB is:

Accepted Answer

The conduction of the atrial impulse failing to reach the ventricle

Answer

An aberrant pathway in the left atrium

Answer

An aberrant neuro pathway in the right atrium

Answer

The automaticity of the ventricle exceeding that of the atria

Question 5

A PVC that occurs during the relative refractory period is referred to as:

Accepted Answer

R-on-T

Answer

Bigeminy

Answer

A couplet

Answer

BBB

Question 6

Which of these rates could be considered a junctional tachycardia?

Accepted Answer

130 bpm

Answer

40 bpm

Answer

60 bpm

Answer

90 bpm

Question 7

A regular rhythm with a narrow QRS complex with no notes P wave and rates between 40-6- bpm is known as:

Accepted Answer

Junctional escape rhythm

Answer

Accelerated junctional rhythm

Answer

Idioventricular escape rhythm

Answer

Premature ventricular contraction

Question 8

Atrial flutter is best described as a rapid atrial depolarization of:

Accepted Answer

A single reentry focus

Answer

Multiple foci

Answer

A ventricular focus

Answer

A sinus node focus

Question 9

Which valves prevent the back flow of blood from the aorta and pulmonary arteries into the ventricles during diastole?

Accepted Answer

Semilunar

Answer

Sinoatrial

Answer

Eustachian

Answer

Atrioventricular

Question 10

The conduction system terminates with the:

Accepted Answer

Purkinje Network

Answer

Sinoatrial Node

Answer

Atrioventricular Junction

Answer

None of the above