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Cnim Study Questions And Answers With Verified Solutions Already Passed!!!
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Cnim Study Questions And Answers With Verified Solutions Already Passed!!!
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Cnim Study Questions And AnswersWith Verified Solutions Already
Passed!!!
You record a spinal potentialto: - ANSWER✔✔ Establish an Action potential (AP)
What drugs would you use for language mapping? - ANSWER✔✔ Fentanyl
D waves are recorded form which of the following electrodes? - ANSWER✔✔
Epidural electrodes over the spinal cord.
Horizontal Dipole: - ANSWER✔✔ P14
What nerve roots are being monitored using the Peroneus longus muscle? -
ANSWER✔✔ L5-S2
Which is the main reason for measuring impedances of all electrodes? -
ANSWER✔✔ To evaluate the electrode contact.
When is leakage current present in an evoked potential instrument? -
ANSWER✔✔ Whenever the instrument is connected to a power source
Which will enhance the analog to digital conversion? - ANSWER✔✔ Ensure that
the range is appropriate to the size of the signal being recorded
,What is the maximum allowable leakage of evoked potential instrument chassis
current? - ANSWER✔✔ 100 microamperes
What is the most likely effect of isoflurane at MAC 1.5 on tibialis anterior CMAP
amplitude in response to spinal stimulation? - ANSWER✔✔ Marked decrease
Intraoperative evoked potential monitoring criteria of abnormality are based on a
comparison of amplitude and latency to - ANSWER✔✔ Postincision baseline
Fentanyl infusion will: - ANSWER✔✔ Increase latency and decrease amplitude
With referential recording, maximal amplitude cortical evoked potentials
following stimulation of the left posterior tibial nerve usually would be found
between: - ANSWER✔✔ C3 and Cz
What is the most common reason for loss of BAEPs during retromastoid
microvascular decompression? - ANSWER✔✔ Compromise vascular supply
Where are electrodes placed to monitor CN XII? - ANSWER✔✔ ob oris oculi
To avoid a false positive the baseline is best taken - ANSWER✔✔ Post‐incision
If you cannot evaluate motor twitch you: - ANSWER✔✔ Increase intensity until
the peripheral response no longer increases
, What is the most acceptable interperiod sample to resolve ABR waveforms? -
ANSWER✔✔ 0.02 mS
Which of the following will best record the P37 peak following left posterior tibial
nerve stimulation? - ANSWER✔✔ CP3
The generator for B is most likely the - ANSWER✔✔ Cervical cord
How do you increase your horizontal resolution? - ANSWER✔✔ Decrease analysis
time
If the internal auditory canal is occluded, what will be the result? - ANSWER✔✔
Decrease of wave V amplitude
For surface electrodes that are exposed to blood or bodily fluids, what level of
decontamination is appropriate? - ANSWER✔✔ High-level disinfection
The stimulation rate is determined by the - ANSWER✔✔ Analysis time
What would be the appropriate monitoring for a lumbar fusion with cage
insertion? - ANSWER✔✔ PTN SSEP with lower extremity EMG
What is the appropriate branch to monitor for cervical surgery at C7? -
ANSWER✔✔ Radial
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