CCI CRAT Exam Practice Test Questions WITH
Correct Answers 2025/2026 Rated A+
When the technician is performing a 12 lead EKG, how many electrodes are used to record the
12 views of the heart? - CORRECT ANSWER -10
When the technician is performing a 12 lead EKG, there would be 10 electrodes used to record
the 12 leads or views of the heart. Twelve leads doesn't necessarily mean 12 electrodes.
Segments and waveforms on an ECG would include all but which of the following? - CORRECT
ANSWER -TB wave
Segments and waveforms on an ECG would include:PR interval QRS complexQT intervalP
waveST segmentU waveT wave
The parasympathetic nervous system would do which of the following? - CORRECT ANSWER -All
of the above
The parasympathetic nervous system would:Slow the patient's heart rateEnhance
digestionDecrease the patient's blood pressureIs mediated by acetylcholine
If the contact on a electrode is not conducting well or the placement is wrong, which of the
following could occur? - CORRECT ANSWER -Wandering baseline
If the contact on a electrode is not conducting well or the placement is wrong, it could cause a
wandering baseline. The wandering baseline can also be caused by chest wall during
respiration.
,When interpreting a cardiac rhythm strip, all of the following would be considered steps except?
- CORRECT ANSWER -Determining the age of the patient
When interpreting a cardiac rhythm strip, there are 5 steps:
Examine all of the components and the shape of the waveforms.
Check the position of the P wave.
Determine if all the complexes are alike.
Determine the rate of the rhythm and if it is normal or abnormal.
Evaluate if the rhythm is regular or irregular.
Which of the following is the typical maximum length for a PR interval? - CORRECT ANSWER -
0.20 seconds is the typical maximum length for PR interval. This of course can vary with heart
rate from 0.12 to 0.20 seconds.
Which of the following artifact results from electrical equipment, mobile telephones, and
electrical power lines? - CORRECT ANSWER -Electromagnetic interference, also known as 60
cycle interference, is artifact caused by electrical equipment, mobile telephones, and electrical
power lines. To minimize 60 cycle interference (or 60 Hz pickup), the technician should set the
diagnostic mode of the 12-lead electrocardiogram monitor to 0.05-40 Hz. With the low
frequency/high pass filter set to 0.05 the monitor should produce accurate ST-segments.
In the 1,500 method for calculating atrial rate, the technician should count which of the
following? - CORRECT ANSWER -Squares between two consecutive P waves
To calculate atrial rate with the 1,500 method, the technician would tally the little squares
between two consecutive P waves and then divide 1,500 by that amount. There are 1,500 small
squares in a one minute rhythm strip.
Which of the following would not be considered a patient area of education? - CORRECT
ANSWER -Providing financial counseling
, There are 4 areas of patient education:
1.Restoration of health
2.Maintenance and promotion
3.Coping with new illness or impairment
4.Prevention of illness and injury
All of the following medications could cause bradycardia except? - CORRECT ANSWER -NSAIDs
Bradycardia can be caused by the following medications:
Beta-adrenergic blockers
Digoxin
Calcium channel blockers
Lithium
Antiarrhythmics (sotalol, amiodarone, propafenone, and quinidine)
Generally, the chest leads are oriented through which of the following to project through the
patient's back? - CORRECT ANSWER -AV node
The chest leads should be oriented through the AV node to project through the patient's back,
which is a negative charge to the leads positive charge. The plane of the chest leads is called the
horizontal plane and it effectively separates the patient's body into top and bottom halves.
When setting up limb leads and placing them in equal distances from the heart, it is typically
known as which of the following? - CORRECT ANSWER -Einthoven's triangle
When setting up limb leads and placing them in equal distances from the heart, it is typically
known at Einthoven's triangle. The leads will form a equilateral triangle with the right arm
electrode being negative.
Correct Answers 2025/2026 Rated A+
When the technician is performing a 12 lead EKG, how many electrodes are used to record the
12 views of the heart? - CORRECT ANSWER -10
When the technician is performing a 12 lead EKG, there would be 10 electrodes used to record
the 12 leads or views of the heart. Twelve leads doesn't necessarily mean 12 electrodes.
Segments and waveforms on an ECG would include all but which of the following? - CORRECT
ANSWER -TB wave
Segments and waveforms on an ECG would include:PR interval QRS complexQT intervalP
waveST segmentU waveT wave
The parasympathetic nervous system would do which of the following? - CORRECT ANSWER -All
of the above
The parasympathetic nervous system would:Slow the patient's heart rateEnhance
digestionDecrease the patient's blood pressureIs mediated by acetylcholine
If the contact on a electrode is not conducting well or the placement is wrong, which of the
following could occur? - CORRECT ANSWER -Wandering baseline
If the contact on a electrode is not conducting well or the placement is wrong, it could cause a
wandering baseline. The wandering baseline can also be caused by chest wall during
respiration.
,When interpreting a cardiac rhythm strip, all of the following would be considered steps except?
- CORRECT ANSWER -Determining the age of the patient
When interpreting a cardiac rhythm strip, there are 5 steps:
Examine all of the components and the shape of the waveforms.
Check the position of the P wave.
Determine if all the complexes are alike.
Determine the rate of the rhythm and if it is normal or abnormal.
Evaluate if the rhythm is regular or irregular.
Which of the following is the typical maximum length for a PR interval? - CORRECT ANSWER -
0.20 seconds is the typical maximum length for PR interval. This of course can vary with heart
rate from 0.12 to 0.20 seconds.
Which of the following artifact results from electrical equipment, mobile telephones, and
electrical power lines? - CORRECT ANSWER -Electromagnetic interference, also known as 60
cycle interference, is artifact caused by electrical equipment, mobile telephones, and electrical
power lines. To minimize 60 cycle interference (or 60 Hz pickup), the technician should set the
diagnostic mode of the 12-lead electrocardiogram monitor to 0.05-40 Hz. With the low
frequency/high pass filter set to 0.05 the monitor should produce accurate ST-segments.
In the 1,500 method for calculating atrial rate, the technician should count which of the
following? - CORRECT ANSWER -Squares between two consecutive P waves
To calculate atrial rate with the 1,500 method, the technician would tally the little squares
between two consecutive P waves and then divide 1,500 by that amount. There are 1,500 small
squares in a one minute rhythm strip.
Which of the following would not be considered a patient area of education? - CORRECT
ANSWER -Providing financial counseling
, There are 4 areas of patient education:
1.Restoration of health
2.Maintenance and promotion
3.Coping with new illness or impairment
4.Prevention of illness and injury
All of the following medications could cause bradycardia except? - CORRECT ANSWER -NSAIDs
Bradycardia can be caused by the following medications:
Beta-adrenergic blockers
Digoxin
Calcium channel blockers
Lithium
Antiarrhythmics (sotalol, amiodarone, propafenone, and quinidine)
Generally, the chest leads are oriented through which of the following to project through the
patient's back? - CORRECT ANSWER -AV node
The chest leads should be oriented through the AV node to project through the patient's back,
which is a negative charge to the leads positive charge. The plane of the chest leads is called the
horizontal plane and it effectively separates the patient's body into top and bottom halves.
When setting up limb leads and placing them in equal distances from the heart, it is typically
known as which of the following? - CORRECT ANSWER -Einthoven's triangle
When setting up limb leads and placing them in equal distances from the heart, it is typically
known at Einthoven's triangle. The leads will form a equilateral triangle with the right arm
electrode being negative.
