1|Page
CRAT TEST FINAL EXAM AND PRACTICE EXAM QUESTIONS
2025 WITH DETAILED VERIFIED ANSWERS (100% CORRECT
ANSWERS) /ALREADY GRADED A+
When the technician is performing a 12 lead EKG, how many electrodes
are used to record the 12 views of the heart? ......ANSWER......10
In measuring the ventricular regularity, if there is no R wave present,
which of the following could be measured instead? ......ANSWER......The
Q and S wave junction
Which of the following protects the ventricles from the 400-600 erratic
atrial impulses that occur during atrial fibrillation? ......ANSWER......AV
node
Generally there is no treatment necessary for bradycardia unless the
patient shows symptoms of which of the following?
......ANSWER......Decreased cardiac output
Which of the following types of permanent pacing requires cardiac
surgery to place wires? ......ANSWER......Epicardial pacing
If the contact on a electrode is not conducting well or the placement is
wrong, which of the following could occur? ......ANSWER......Wandering
baseline
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Which of the following is the most common ECG electrode
misconnection or reversal? ......ANSWER......Right arm/left arm
accelerated junctional rhythm is only significant if the patient is showing
signs of which of the following? ......ANSWER......Decreased cardiac
output
Sinus rhythm is the pacemaker action from which of the following?
......ANSWER......SA node
In the 1,500 method for calculating atrial rate, the technician should
count which of the following? ......ANSWER......Squares between two
consecutive P waves
Resulting from the blood volume in the ventricles at the end of diastole
the passive stretching of the muscle fibers in the ventricles is called
which of the following? ......ANSWER......Preload
Generally, the chest leads are oriented through which of the following
to project through the patient's back? ......ANSWER......AV node
Sinus tachycardia occurs in approximately what percentage of patients
following an acute myocardial infarction? ......ANSWER......30%
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Which of the following types of sinoatrial block can not be recognized
on a rhythm strip? ......ANSWER......First degree
When evaluating pacemaker function, the evidence seen when viewing
the cardiac tracing on the heart monitor is known as which of the
following? ......ANSWER......Electrical capture
Prolonged PR Intervals are associated with which of the following?
......ANSWER......Conduction delays
Short PR intervals are associated with which of the following?
......ANSWER......Pre-excitation syndromes
How many different types of atrial tachycardia are there?
......ANSWER......Three
Atrial flutter, multifocal atrial tachycardia, and junctional tachycardia are
examples of which of the following? ......ANSWER......Supraventricular
tachycardia
A patient with recurrent junctional tachycardia may be treated with
which of the following? ......ANSWER......Ablation therapy
Which of the following might be indicated if a Q wave is deep and wide?
......ANSWER......Myocardial infarction
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An irregular rhythm caused by an extra beat occurring before the
regular beat is which of the following? ......ANSWER......Premature
junctional contraction
Which of the following is not one of the causes for the permanent
atrioventricular blocks? ......ANSWER......Digoxin toxicity
Which of the following happens when the ventricles are in diastole and
the aortic valve is closed? ......ANSWER......Coronary arteries fill
In a 12 lead ECG, which of the following is the number of limb leads
there are? ......ANSWER......6
A tract of tissue that extends into the ventricles next to the
interventricular septum is known as which of the following?
......ANSWER......His bundle
The heart's ability to stretch is known as which of the following?
......ANSWER......Elasticity
How would a compensatory pause be defined? ......ANSWER......When
the interval that is between normal beats contains a premature
ventricular contraction which is as large as two normal beats
CRAT TEST FINAL EXAM AND PRACTICE EXAM QUESTIONS
2025 WITH DETAILED VERIFIED ANSWERS (100% CORRECT
ANSWERS) /ALREADY GRADED A+
When the technician is performing a 12 lead EKG, how many electrodes
are used to record the 12 views of the heart? ......ANSWER......10
In measuring the ventricular regularity, if there is no R wave present,
which of the following could be measured instead? ......ANSWER......The
Q and S wave junction
Which of the following protects the ventricles from the 400-600 erratic
atrial impulses that occur during atrial fibrillation? ......ANSWER......AV
node
Generally there is no treatment necessary for bradycardia unless the
patient shows symptoms of which of the following?
......ANSWER......Decreased cardiac output
Which of the following types of permanent pacing requires cardiac
surgery to place wires? ......ANSWER......Epicardial pacing
If the contact on a electrode is not conducting well or the placement is
wrong, which of the following could occur? ......ANSWER......Wandering
baseline
,2|Page
Which of the following is the most common ECG electrode
misconnection or reversal? ......ANSWER......Right arm/left arm
accelerated junctional rhythm is only significant if the patient is showing
signs of which of the following? ......ANSWER......Decreased cardiac
output
Sinus rhythm is the pacemaker action from which of the following?
......ANSWER......SA node
In the 1,500 method for calculating atrial rate, the technician should
count which of the following? ......ANSWER......Squares between two
consecutive P waves
Resulting from the blood volume in the ventricles at the end of diastole
the passive stretching of the muscle fibers in the ventricles is called
which of the following? ......ANSWER......Preload
Generally, the chest leads are oriented through which of the following
to project through the patient's back? ......ANSWER......AV node
Sinus tachycardia occurs in approximately what percentage of patients
following an acute myocardial infarction? ......ANSWER......30%
,3|Page
Which of the following types of sinoatrial block can not be recognized
on a rhythm strip? ......ANSWER......First degree
When evaluating pacemaker function, the evidence seen when viewing
the cardiac tracing on the heart monitor is known as which of the
following? ......ANSWER......Electrical capture
Prolonged PR Intervals are associated with which of the following?
......ANSWER......Conduction delays
Short PR intervals are associated with which of the following?
......ANSWER......Pre-excitation syndromes
How many different types of atrial tachycardia are there?
......ANSWER......Three
Atrial flutter, multifocal atrial tachycardia, and junctional tachycardia are
examples of which of the following? ......ANSWER......Supraventricular
tachycardia
A patient with recurrent junctional tachycardia may be treated with
which of the following? ......ANSWER......Ablation therapy
Which of the following might be indicated if a Q wave is deep and wide?
......ANSWER......Myocardial infarction
, 4|Page
An irregular rhythm caused by an extra beat occurring before the
regular beat is which of the following? ......ANSWER......Premature
junctional contraction
Which of the following is not one of the causes for the permanent
atrioventricular blocks? ......ANSWER......Digoxin toxicity
Which of the following happens when the ventricles are in diastole and
the aortic valve is closed? ......ANSWER......Coronary arteries fill
In a 12 lead ECG, which of the following is the number of limb leads
there are? ......ANSWER......6
A tract of tissue that extends into the ventricles next to the
interventricular septum is known as which of the following?
......ANSWER......His bundle
The heart's ability to stretch is known as which of the following?
......ANSWER......Elasticity
How would a compensatory pause be defined? ......ANSWER......When
the interval that is between normal beats contains a premature
ventricular contraction which is as large as two normal beats
