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CNIM FINAL EXAM AND PRACTICE EXAM 600 QUESTRIONS AND ( ANSWERS)
CNIM FINAL EXAM AND PRACTICE EXAM
2026-2027 600
QUESTRIONS AND CORRECT DETAILED
ANSWERS WITH RATIONALES (
ANSWERS)
What is the most likely effect of isoflurane at MAC 1.5 on
tibialis anterior CMAP amplitude in response to spinal
stimulation?
1. Marked increase
2. Marked decrease
3. Minimal decrease
4. Minimal increase - ANSWER- 2. Marked decrease
It is most important for intraoperative monitoring records to
include notions of?
1. Surgical events
2. periodic impedance checks
3. serial changes in hematocrit
4. changes in anesthesia personnel - ANSWER- 1. Surgical
events
Which of the following is a critical surgical event?
1. Drilling of burr hole in skull
2. Decortication of vertebral elements
3. Placing of muscle plug in the internal auditory canal
4. Resecting of tumor fragments during acoustic neuroma
resection - ANSWER- 4. Resecting of tumor fragments during
acoustic neuroma resection
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 - ANSWER- 1. loss of response
D waves are recorded from which of the following electrodes?
1. Epidural electrodes over the spinal cord
2. Subdural electrodes over the motor strip
3. Surface electrodes over peripheral nerves
4. Needle electrodes in distal extremity muscles - ANSWER- 1.
Epidural electrodes over the spinal cord
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 - ANSWER- 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
3. inform the technologist when critical structures are
approached
4. avoid monopolar cautery use - ANSWER- 3. inform the
technologist when critical structures are approached
Pedicle screws are used for?
1. Spinal fixation
2. correction of curve
3. anterior fusion
4. derotation of spine - ANSWER- 1. spinal fixation
The purpose of interbody cages is often?
1. employ multiple point fixation
2. restore lost disc height
3. restore sagittal contours
4. prevent migration prior to fixation - ANSWER- 2. restore lost
disc height
Transcranial motor evoked potentials are best elicited when
using?
1. a train of stimuli
2. complete neuromuscular blockade
3. halogenated agents
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