CNIM FINAL EXAM AND PRACTICE
EXAM LATEST
QUESTIONS AND CORRECT DETAILED
ANSWERS LATEST EXAM UPDATE
Impedances of applied electrodes should be
1. Balanced and below 5,000 ohms
2. Balanced and above 5,000 ohms
3. Unbalanced and below 5,000 ohms
4. Unbalanced and above 5,000 ohms - ✔✔✔ANSW✔✔..1. Balanced and below 5,000 ohms
During posterior fossa surgery, when BAEPs are used for monitoring brainstem function, it is most
important to 1. Record cranial nerve VII action potentials
2. Monitor cranial nerve V function ipsilaterally
3. Stimulate and record from the operative side only
4. Stimulate and record from the contralateral side -
✔✔✔ANSW✔✔..4.
Stimulate and record from the contralateral side
Which of the following cranial nerves is most appropriate to monitor during resection of a 4 cm
vestibular schwannoma?
1. Optic
2. Facial
3. Abducens
4. Oculomotor - ✔✔✔ANSW✔✔..2. Facial
,If the EEG is preserved during carotid endarterectomy surgery, it indicates
1. Inadequate level of anesthesia
4. Central conduction time - ✔✔✔ANSW✔✔..3. Erbs point potential
Selection of the nerve to be stimulated for preoperative baseline
SSEPs is determined by the 1. Patient age
2. Surgical procedure
3. Dermatomal innervation
4. ANesthesiologist - ✔✔✔ANSW✔✔..2. Surgical procedure
The record the afferent volley during preoperative baseline studies after
posterior tibial stimulation, an electrode should be placed on the
1. Patella
2.
Metatarsal
3. Popliteal fossa
4. Medial malleolus - ✔✔✔ANSW✔✔..3. Popliteal fossa
Routine intraoperative electrophysiological monitoring documentation should include 1. Heart rate
2. Blood pressure
3. Respiratory rate
4. Blood plasma volume - ✔✔✔ANSW✔✔..2. Blood pressure
If a technologist accidentally touches a sterile table, which of the
following is the most appropriate action?
1. Change scrub suit immediately
2. Remain silent until procedure is completed
,3. Notify the scrub or circulating nurse at once
4. Maintain safe distance from sterile field - ✔✔✔ANSW✔✔..3. Notify
the scrub or circulating nurse at o nce
In a bipolar montage, the key element in localization is the
1. Instrument phase reverse
2. Relative voltage in each channel
3. Common mode rejection of in-phase noise
4. Synchronization of discharges - ✔✔✔ANSW✔✔..1. Instrument phase reverse
Scalp-to-noncephalic reference
1. Fz-C5S
2. Cpz-Fz
3. Epi-Epc
4. Cpc-Cpi - ✔✔✔ANSW✔✔..1. Fz-C5S
According to the ACNS guidelines, system bandpass settings for monitoring facial nerve spontaneous
muscle activity should be
1. 1-250 to 1500 Hz
2. 10-30 to 2500-3000 Hz
3. 10-30 to 16,000 Hz
4. 100-200 to 1000-3000 Hz - ✔✔✔ANSW✔✔..3. 10-30 to 16,000 Hz
According to the ACNS guidelines, facial nerve monitoring electrodes should be placed in which of
the following muscles?
1. Masseter and trapezius
2. Frontalis and trapezius
3. Laryngeal and nasalis
4. Orbicularis oculi and orbicularis oris - ✔✔✔ANSW✔✔..4. Orbicularis
oculi and orbicularis oris
, Harrington instrumentation includes
1. Rods
2. Pedicle screws
3. Sublaminal wires
4. Segmental wires - ✔✔✔ANSW✔✔..1. Rods
Which of the following should be reported to the surgeon?
1. Loss of response
2. Change in time base
3. Switch to backup electrodes
4. Increase in stimulus intensity - ✔✔✔ANSW✔✔..1. Loss of response
During endolymphatic sac surgery, trending of which of the following waveform measures would be
most helpful?
1. Wave V/I amplitude ratio
2. Wave i-III interpeak interval
3. Wave III-V interpeak interval
4. Summating potential/action potential amplitude ratio -
✔✔✔ANSW✔✔..4. Summating potential/action potential amplitude ratio
An objective measure of meaningful change to use to warn the surgeon is
the
1. Latency decrease
2. 50% amplitude decrease
3. IPL decrease
4. 10% amplitude decrease - ✔✔✔ANSW✔✔..2. 50% amplitude
decrease
Changes can be reported to the surgeon as quickly as possible when the surgeon is asked to
1. Alert the technologist when cautery is in use
2. Keep the field dry of fluids
EXAM LATEST
QUESTIONS AND CORRECT DETAILED
ANSWERS LATEST EXAM UPDATE
Impedances of applied electrodes should be
1. Balanced and below 5,000 ohms
2. Balanced and above 5,000 ohms
3. Unbalanced and below 5,000 ohms
4. Unbalanced and above 5,000 ohms - ✔✔✔ANSW✔✔..1. Balanced and below 5,000 ohms
During posterior fossa surgery, when BAEPs are used for monitoring brainstem function, it is most
important to 1. Record cranial nerve VII action potentials
2. Monitor cranial nerve V function ipsilaterally
3. Stimulate and record from the operative side only
4. Stimulate and record from the contralateral side -
✔✔✔ANSW✔✔..4.
Stimulate and record from the contralateral side
Which of the following cranial nerves is most appropriate to monitor during resection of a 4 cm
vestibular schwannoma?
1. Optic
2. Facial
3. Abducens
4. Oculomotor - ✔✔✔ANSW✔✔..2. Facial
,If the EEG is preserved during carotid endarterectomy surgery, it indicates
1. Inadequate level of anesthesia
4. Central conduction time - ✔✔✔ANSW✔✔..3. Erbs point potential
Selection of the nerve to be stimulated for preoperative baseline
SSEPs is determined by the 1. Patient age
2. Surgical procedure
3. Dermatomal innervation
4. ANesthesiologist - ✔✔✔ANSW✔✔..2. Surgical procedure
The record the afferent volley during preoperative baseline studies after
posterior tibial stimulation, an electrode should be placed on the
1. Patella
2.
Metatarsal
3. Popliteal fossa
4. Medial malleolus - ✔✔✔ANSW✔✔..3. Popliteal fossa
Routine intraoperative electrophysiological monitoring documentation should include 1. Heart rate
2. Blood pressure
3. Respiratory rate
4. Blood plasma volume - ✔✔✔ANSW✔✔..2. Blood pressure
If a technologist accidentally touches a sterile table, which of the
following is the most appropriate action?
1. Change scrub suit immediately
2. Remain silent until procedure is completed
,3. Notify the scrub or circulating nurse at once
4. Maintain safe distance from sterile field - ✔✔✔ANSW✔✔..3. Notify
the scrub or circulating nurse at o nce
In a bipolar montage, the key element in localization is the
1. Instrument phase reverse
2. Relative voltage in each channel
3. Common mode rejection of in-phase noise
4. Synchronization of discharges - ✔✔✔ANSW✔✔..1. Instrument phase reverse
Scalp-to-noncephalic reference
1. Fz-C5S
2. Cpz-Fz
3. Epi-Epc
4. Cpc-Cpi - ✔✔✔ANSW✔✔..1. Fz-C5S
According to the ACNS guidelines, system bandpass settings for monitoring facial nerve spontaneous
muscle activity should be
1. 1-250 to 1500 Hz
2. 10-30 to 2500-3000 Hz
3. 10-30 to 16,000 Hz
4. 100-200 to 1000-3000 Hz - ✔✔✔ANSW✔✔..3. 10-30 to 16,000 Hz
According to the ACNS guidelines, facial nerve monitoring electrodes should be placed in which of
the following muscles?
1. Masseter and trapezius
2. Frontalis and trapezius
3. Laryngeal and nasalis
4. Orbicularis oculi and orbicularis oris - ✔✔✔ANSW✔✔..4. Orbicularis
oculi and orbicularis oris
, Harrington instrumentation includes
1. Rods
2. Pedicle screws
3. Sublaminal wires
4. Segmental wires - ✔✔✔ANSW✔✔..1. Rods
Which of the following should be reported to the surgeon?
1. Loss of response
2. Change in time base
3. Switch to backup electrodes
4. Increase in stimulus intensity - ✔✔✔ANSW✔✔..1. Loss of response
During endolymphatic sac surgery, trending of which of the following waveform measures would be
most helpful?
1. Wave V/I amplitude ratio
2. Wave i-III interpeak interval
3. Wave III-V interpeak interval
4. Summating potential/action potential amplitude ratio -
✔✔✔ANSW✔✔..4. Summating potential/action potential amplitude ratio
An objective measure of meaningful change to use to warn the surgeon is
the
1. Latency decrease
2. 50% amplitude decrease
3. IPL decrease
4. 10% amplitude decrease - ✔✔✔ANSW✔✔..2. 50% amplitude
decrease
Changes can be reported to the surgeon as quickly as possible when the surgeon is asked to
1. Alert the technologist when cautery is in use
2. Keep the field dry of fluids
