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CNIM REVIEW EXAM QUESTIONS AND VERIFIED ANSWERS
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CNIM REVIEW EXAM QUESTIONS AND VERIFIEDANSWERS
Which of the following are clinical signs of a lower motor neuron lesion? -
Answer: Fasciculation.
A stroke is most likely to occur following a carotid endarterectomy: - ANSWER
After cross-clamping
Troubleshooting in the operating room is made easier by viewing the raw signal
input.
Which TcMEP wave is most influenced by a 30-mg rocuronium bolus? -
ANSWER: I-wave
During a posterior cervical fusion for spinal stenosis, a worldwide shift in
latency cortical and subcortical ulnar and tibial nerve SSEPs is observed 1 hour
later. This shift could indicate - ANSWER. Head/neck position
Stimulus artefact during SSEPs can be reduced by: - Lowering the impedances
of ground and stimulating electrodes
An analysis time of 5 msec is appropriate for monitoring. - Answer: ECochG.
What is the required vertical resolution for an evoked potential system? -
ANSWER 16 bits
What is the dB value for an amplifier with a common mode rejection ratio of
100:1? - Answer 40.
The typical SSEP recording electrodes must be adjusted to accommodate the
operative location for posterior fossa tumor resection. What adjustments should
be made? - ANSWER: Move C5S laterally.
A positive event in the lead connecting to the negative terminal will cause a
deflection. - ANSWER Downward
, What is the intraoperative use of DSEP? - ANSWER Prevent nerve root injury
during spinal cord manipulation.
The anterior spinothalamic tract transports the sensory modalities of: - Answer:
Crude touch.
Which of the following is against any change in current? - Answer: Inductance.
D-wave - ANSWER Spinal epidural recordings
Which of the following arteries is best suited for monitoring posterior tibial
nerve SSEPs? - ANSWER Anterior cerebral
What type of abnormalities can be caused by a malfunction in lower motor
neurons? - ANSWER Flaccid paralysis.
Which modalities should be monitored for a C7 fracture? - ANSWER Ulnar
Nerve and PTN
I-Waves and muscle artifact appear with a latency: - ANSWER: Later than the
D-wave
Which of the following anesthetics will not eliminate the transcranial electric
motor evoked potential? - ANSWER Fentanyl
How do benzodiazepines influence cortical SEP waves? - ANSWER: reduce
amplitude.
Which of the following materials are used to make MRI conditional electrodes?
- ANSWER Nickel Titanium
Which of the following would produce the highest resolution in the analog-to-
digital conversion process? - ANSWER The maximum peak-to-peak signal
amplitude should correspond to the converter range.
If the posterior tibial nerve potential cannot be generated by stimulation at the
medial malleous, what alternate place can be used? - ANSWER Popliteal fossa.
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