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CCI CRAT EXAM PRACTICE TEST 2 QUESTIONS AND
ANSWERS GRADED A+ LATEST UPDATE.
1. When the technician is performing a 12 lead EKG, how many electrodes are
used to record the 12 views of the heart?: 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.
2. Segments and waveforms on an ECG would include all but which of the
following?: TB wave
Segments and waveforms on an ECG would include:PR interval QRS complexQT
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,mailto:https://www.stuvia.com/user/techgrades
intervalP waveST segmentU waveT wave
3. The parasympathetic nervous system would do which of the following?: All
of the above
The parasympathetic nervous system would:Slow the patient's heart rateEnhance
digestionDecrease the patient's blood pressureIs mediated by acetylcholine
4. If the contact on a electrode is not conducting well or the placement is
wrong, which of the following could occur?: 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.
5. When interpreting a cardiac rhythm strip, all of the following would be
considered steps except?: 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.
6. Which of the following is the typical maximum length for a PR interval?: 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.
7. Which of the following artifact results from electrical equipment, mobile tele-
phones, and electrical power lines?: Electromagnetic interference, also known as
mailto:https://www.stuvia.com/en-us/user/techgrades
,mailto:https://www.stuvia.com/user/techgrades
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
mailto:https://www.stuvia.com/en-us/user/techgrades
CCI CRAT EXAM PRACTICE TEST 2 QUESTIONS AND
ANSWERS GRADED A+ LATEST UPDATE.
1. When the technician is performing a 12 lead EKG, how many electrodes are
used to record the 12 views of the heart?: 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.
2. Segments and waveforms on an ECG would include all but which of the
following?: TB wave
Segments and waveforms on an ECG would include:PR interval QRS complexQT
mailto:https://www.stuvia.com/en-us/user/techgrades
,mailto:https://www.stuvia.com/user/techgrades
intervalP waveST segmentU waveT wave
3. The parasympathetic nervous system would do which of the following?: All
of the above
The parasympathetic nervous system would:Slow the patient's heart rateEnhance
digestionDecrease the patient's blood pressureIs mediated by acetylcholine
4. If the contact on a electrode is not conducting well or the placement is
wrong, which of the following could occur?: 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.
5. When interpreting a cardiac rhythm strip, all of the following would be
considered steps except?: 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.
6. Which of the following is the typical maximum length for a PR interval?: 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.
7. Which of the following artifact results from electrical equipment, mobile tele-
phones, and electrical power lines?: Electromagnetic interference, also known as
mailto:https://www.stuvia.com/en-us/user/techgrades
,mailto:https://www.stuvia.com/user/techgrades
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
mailto:https://www.stuvia.com/en-us/user/techgrades
