CNIM 1000 Practice Questions –
Comprehensive Exam Preparation
_________________ is the single most important step taken to avoid contamination a. Using gloves b.
Using protective eyewear c. Washing hands d. Using a transportation barrier - Answer: C
"A" is a. The spinous process b. The pedicle c. The vertebral foramen d. The tansverse process e. The
body of the vertebra - Answer: C
"B" is a. The spinous process b. The pedicle c. The vertebral foramen d. The tansverse process e. The
body of the vertebra - Answer: B
"C" is a. The spinous process b. The pedicle c. The vertebral foramen d. The tansverse process e. The
body of the vertebra - Answer: A
"Central Cord Syndrome" results in: a. Loss of function at the level damaged due to disruption of the
dura mater b. Loss of function at the level damaged due to disruption of gray matter c. Loss of function
at the level damaged due to disruption of the dorsal root ganglion d. Loss of function at the level
damaged due to disruption of white matter e. Loss of function at the level damaged due to a
laminectomy - Answer: B
"D" is a. The spinous process b. The pedicle c. The vertebral foramen d. The tansverse process e. The
body of the vertebra - Answer: D
"E" is a. The spinous process b. The pedicle c. The vertebral foramen d. The tansverse process e. The
body of the vertebra - Answer: E
"Electrode impedance" is defined as opposition to a. direct current flow b. alternating current flow c.
differential current flow d. 60 Hz artifact - Answer: B
"Hearing level" (HL) is defined as the a. average threshold intensity of normally hearing young adults b.
intensity of a long duration sound that has the same amplitude as the peak SPL of a short duration
sound c. lowest intensity that an average ear drum can hear d. inverse of the sound pressure level -
Answer: A
,CNIM 1000 Practice Questions –
Comprehensive Exam Preparation
"Prestimulus triggering" a. presents a positive signal to the averager prior to initiating the display b.
includes a period of recording before the stimulus c. eliminates the problems associated with recording
the stimulus artifact d. delays the synchronizing pulse to the computer - Answer: B
"Signal-to-noise ratio" relates to which of the following? a. The amplitude of the evoked response
components to the amplitude of the unrelated components b. The ability of the instrument to resolve
data and noise vertically c. Two inputs of a differential amplifier with like negativity d. Sensitivity scaling
- Answer: A
0.2 µV signal at its positive input and a 0.8 µV signal at its negative input. The output will be: a. An
upward peak of 0.6 V b. A downward peak of 0.6 V c. An upward peak of 1 V d. A downward peak of 1 V
- Answer: B
50. Personal Protection Devices (PPDs) consist of: a. Gloves b. Masks c. Gowns d. All of the above -
Answer: D
A "beanbag is often used: a. In Fowler's position b. In reverse Trendelenburg's position c. In Kraske's
position d. In Trendenlenburg's position e. In the lateral position - Answer: E
A "false negative" test a. is the desired goal of the intraoperative monitoring staff b. means that the test
results do not show an abnormality when a clinical abnormality is present c. means that the test results
show an abnormality when no clinical abnormality exists d. presents the N18 wave as a positive down-
going response - Answer: B
A "ground loop" is created when a. two separate devices are attached to the same patient and have two
separate grounding connections b. two recording electrodes are connected to two separate input boxes
of the same instrument c. the patient is grounded by the large electrocautery ground that resembles a
loop d. separate equipment attached to the same patient have current-limiting grounds - Answer: A
A "MAC" (minimal alveolar concentration) is: a. ½ cc b. 1% of an inhalation agent such as isoflurane c.
10% of an inhalation agent such as isoflurane d. 60% of N20 e. The concentration at which ½ the
subjects move in response to stimulation such as a surgical incision - Answer: E
,CNIM 1000 Practice Questions –
Comprehensive Exam Preparation
A 10 Hz signal passing through a 10 Hz locut filter will be: a. Reduced in frequency to approximately 7Hz
b. Affected in no way c. Reduced in amplitude by approximately 30% d. Eliminated - Answer: C
A 10-bit A/D Converter has how many discrete voltage values in its range? a. 256 b. 512 c. 1024 d. 2048 -
Answer: C
A 60 Hz artifact would most likely be caused by: a. Pneumatic drill b. Blanket warmer c. Infusion pump d.
Ultrasonic aspirator - Answer: B
A 60 Hz notch filter should not be used for evoked potential recording because of: a. The ringing artifact
that comes from distortion of the stimulus artifact b. b. Aliasing of the signal by the filter c. c. 60 Hz
interference coming from various OR equipment d. d. Common mode rejection of 60 Hz prior to filtering
- Answer: A
A 100 mS epoch is recorded with a 10 mS post-stimulus triggering. Which of the following best describes
the resulting sweep? a. A 110 mS sweep starting 10 mS prior to the stimulus b. A 90 mS sweep starting
10 mS after the stimulus c. A 100 mS sweep starting 10 mS prior to the stimulus d. A 100 mS sweep
starting 10 mS after the stimulus - Answer: D
A Babinski's sign in an adult a. indicates an upper motor neuron lesion b. is normal c. is elicited the same
way an Oppenheim's sign is elicited d. is abnormal if the toes plantarflex - Answer: A
A Babinski's sign in an adult a. Indicates an upper motor neuron lesion b. Is normal c. Is elicited the same
way an Oppenheim's sign is elicited d. Is normal if the toes plantarflex e. Takes place with anesthesia -
Answer: A
A CMAP response to proximal facial nerve stimulation following tumor removal would indicate: a.
Probable post-operative facial nerve dysfunction b. An intact neuromuscular pathway c. Complete
transaction of the facial nerve d. An intact auditory nerve - Answer: B
A condensation click a. delivers the loudest sounds to the tympanic membrane b. causes the tympanic
membrane to move outward c. causes the headphone diaphragm to displace toward the tympanic
, CNIM 1000 Practice Questions –
Comprehensive Exam Preparation
membrane d. causes the headphone diaphragm to move away from the tympanic membrane - Answer:
C
A constant voltage stimulator a. varies the current in order to maintain a preset voltage level b.
maintains a constant voltage of 100 volts c. varies the output in order to maintain a preset current level
d. maintains a current level of 10 mA - Answer: A
A contraindication for the use of transcranial magnetic stimulation is a. patient obesity b. a cardiac
pacemaker in place c. multiple sclerosis d. transverse myelitis - Answer: B
A decrease in the power spectral edge indicates: a. Nothing b. Insufficient brain perfusion c. Increased
anesthesia d. A greater proportion of EEG power at the lower frequencies - Answer: D
A decreasing body temperature of the surgical patient monitored with EPs can result in: a. increasing
latencies of the SSEP and BAEP b. no remarkable changes c. increased amplitude of SSEP cortical
responses d. higher electrode impedances - Answer: A
A difference in alpha waves between the two hemispheres by more than 1 Hz is considered: a. Normal b.
Abnormal c. An indication of a neoplastic lesion in the hemisphere that is slower d. An indication of a
neoplastic lesion in the hemisphere that is faster e. A sign that electrodes have poor impedance -
Answer: B
A differential amplifier records a. only the first two inputs b. the second half of the two inputs c. the
power of the sum of the two inputs d. the difference between the two inputs - Answer: D
A differential amplifier records a. The second half of the two inputs b. The difference between the two
inputs c. The power of the sum of the two inputs d. Only the first two inputs - Answer: B
A dorsal rhizotomy involves: a. Placement of a dorsal column stimulating electrode implant b. Sectioning
of motor rootlets c. Sectioning of sensory rootlets d. Sectioning of the filum terminale - Answer: C
Comprehensive Exam Preparation
_________________ is the single most important step taken to avoid contamination a. Using gloves b.
Using protective eyewear c. Washing hands d. Using a transportation barrier - Answer: C
"A" is a. The spinous process b. The pedicle c. The vertebral foramen d. The tansverse process e. The
body of the vertebra - Answer: C
"B" is a. The spinous process b. The pedicle c. The vertebral foramen d. The tansverse process e. The
body of the vertebra - Answer: B
"C" is a. The spinous process b. The pedicle c. The vertebral foramen d. The tansverse process e. The
body of the vertebra - Answer: A
"Central Cord Syndrome" results in: a. Loss of function at the level damaged due to disruption of the
dura mater b. Loss of function at the level damaged due to disruption of gray matter c. Loss of function
at the level damaged due to disruption of the dorsal root ganglion d. Loss of function at the level
damaged due to disruption of white matter e. Loss of function at the level damaged due to a
laminectomy - Answer: B
"D" is a. The spinous process b. The pedicle c. The vertebral foramen d. The tansverse process e. The
body of the vertebra - Answer: D
"E" is a. The spinous process b. The pedicle c. The vertebral foramen d. The tansverse process e. The
body of the vertebra - Answer: E
"Electrode impedance" is defined as opposition to a. direct current flow b. alternating current flow c.
differential current flow d. 60 Hz artifact - Answer: B
"Hearing level" (HL) is defined as the a. average threshold intensity of normally hearing young adults b.
intensity of a long duration sound that has the same amplitude as the peak SPL of a short duration
sound c. lowest intensity that an average ear drum can hear d. inverse of the sound pressure level -
Answer: A
,CNIM 1000 Practice Questions –
Comprehensive Exam Preparation
"Prestimulus triggering" a. presents a positive signal to the averager prior to initiating the display b.
includes a period of recording before the stimulus c. eliminates the problems associated with recording
the stimulus artifact d. delays the synchronizing pulse to the computer - Answer: B
"Signal-to-noise ratio" relates to which of the following? a. The amplitude of the evoked response
components to the amplitude of the unrelated components b. The ability of the instrument to resolve
data and noise vertically c. Two inputs of a differential amplifier with like negativity d. Sensitivity scaling
- Answer: A
0.2 µV signal at its positive input and a 0.8 µV signal at its negative input. The output will be: a. An
upward peak of 0.6 V b. A downward peak of 0.6 V c. An upward peak of 1 V d. A downward peak of 1 V
- Answer: B
50. Personal Protection Devices (PPDs) consist of: a. Gloves b. Masks c. Gowns d. All of the above -
Answer: D
A "beanbag is often used: a. In Fowler's position b. In reverse Trendelenburg's position c. In Kraske's
position d. In Trendenlenburg's position e. In the lateral position - Answer: E
A "false negative" test a. is the desired goal of the intraoperative monitoring staff b. means that the test
results do not show an abnormality when a clinical abnormality is present c. means that the test results
show an abnormality when no clinical abnormality exists d. presents the N18 wave as a positive down-
going response - Answer: B
A "ground loop" is created when a. two separate devices are attached to the same patient and have two
separate grounding connections b. two recording electrodes are connected to two separate input boxes
of the same instrument c. the patient is grounded by the large electrocautery ground that resembles a
loop d. separate equipment attached to the same patient have current-limiting grounds - Answer: A
A "MAC" (minimal alveolar concentration) is: a. ½ cc b. 1% of an inhalation agent such as isoflurane c.
10% of an inhalation agent such as isoflurane d. 60% of N20 e. The concentration at which ½ the
subjects move in response to stimulation such as a surgical incision - Answer: E
,CNIM 1000 Practice Questions –
Comprehensive Exam Preparation
A 10 Hz signal passing through a 10 Hz locut filter will be: a. Reduced in frequency to approximately 7Hz
b. Affected in no way c. Reduced in amplitude by approximately 30% d. Eliminated - Answer: C
A 10-bit A/D Converter has how many discrete voltage values in its range? a. 256 b. 512 c. 1024 d. 2048 -
Answer: C
A 60 Hz artifact would most likely be caused by: a. Pneumatic drill b. Blanket warmer c. Infusion pump d.
Ultrasonic aspirator - Answer: B
A 60 Hz notch filter should not be used for evoked potential recording because of: a. The ringing artifact
that comes from distortion of the stimulus artifact b. b. Aliasing of the signal by the filter c. c. 60 Hz
interference coming from various OR equipment d. d. Common mode rejection of 60 Hz prior to filtering
- Answer: A
A 100 mS epoch is recorded with a 10 mS post-stimulus triggering. Which of the following best describes
the resulting sweep? a. A 110 mS sweep starting 10 mS prior to the stimulus b. A 90 mS sweep starting
10 mS after the stimulus c. A 100 mS sweep starting 10 mS prior to the stimulus d. A 100 mS sweep
starting 10 mS after the stimulus - Answer: D
A Babinski's sign in an adult a. indicates an upper motor neuron lesion b. is normal c. is elicited the same
way an Oppenheim's sign is elicited d. is abnormal if the toes plantarflex - Answer: A
A Babinski's sign in an adult a. Indicates an upper motor neuron lesion b. Is normal c. Is elicited the same
way an Oppenheim's sign is elicited d. Is normal if the toes plantarflex e. Takes place with anesthesia -
Answer: A
A CMAP response to proximal facial nerve stimulation following tumor removal would indicate: a.
Probable post-operative facial nerve dysfunction b. An intact neuromuscular pathway c. Complete
transaction of the facial nerve d. An intact auditory nerve - Answer: B
A condensation click a. delivers the loudest sounds to the tympanic membrane b. causes the tympanic
membrane to move outward c. causes the headphone diaphragm to displace toward the tympanic
, CNIM 1000 Practice Questions –
Comprehensive Exam Preparation
membrane d. causes the headphone diaphragm to move away from the tympanic membrane - Answer:
C
A constant voltage stimulator a. varies the current in order to maintain a preset voltage level b.
maintains a constant voltage of 100 volts c. varies the output in order to maintain a preset current level
d. maintains a current level of 10 mA - Answer: A
A contraindication for the use of transcranial magnetic stimulation is a. patient obesity b. a cardiac
pacemaker in place c. multiple sclerosis d. transverse myelitis - Answer: B
A decrease in the power spectral edge indicates: a. Nothing b. Insufficient brain perfusion c. Increased
anesthesia d. A greater proportion of EEG power at the lower frequencies - Answer: D
A decreasing body temperature of the surgical patient monitored with EPs can result in: a. increasing
latencies of the SSEP and BAEP b. no remarkable changes c. increased amplitude of SSEP cortical
responses d. higher electrode impedances - Answer: A
A difference in alpha waves between the two hemispheres by more than 1 Hz is considered: a. Normal b.
Abnormal c. An indication of a neoplastic lesion in the hemisphere that is slower d. An indication of a
neoplastic lesion in the hemisphere that is faster e. A sign that electrodes have poor impedance -
Answer: B
A differential amplifier records a. only the first two inputs b. the second half of the two inputs c. the
power of the sum of the two inputs d. the difference between the two inputs - Answer: D
A differential amplifier records a. The second half of the two inputs b. The difference between the two
inputs c. The power of the sum of the two inputs d. Only the first two inputs - Answer: B
A dorsal rhizotomy involves: a. Placement of a dorsal column stimulating electrode implant b. Sectioning
of motor rootlets c. Sectioning of sensory rootlets d. Sectioning of the filum terminale - Answer: C
