CNIM Practice Test 4 Final Exam
Questions with Guaranteed Pass
Solutions 2026 Updated.
Which of the following temperatures should be annotated as being hypothermic?
34 degrees C
36 degrees C
38 degrees C
40 degrees C - Answer 34 degrees C
Which of the following is an appropriate bandpass for BAEPs?
1 - 100 Hz
5 - 1000Hz
100 - 2500 Hz
250 - 3000Hz - Answer 100 - 2500 Hz
The stimulation rate is determined by the
Analysis time
Number of stimulations
Stimulus intensity
Nerve conduction velocity - Answer Analysis time
The monitoring team must ensure that stimulus parameters are within safe limits to
A
0/100 pts
Avoid tissue damage
Protect equipment from breakdown
Minimize 60 Hz interference
Prevent chassis current leakage - Answer Avoid tissue damage
Which of the following nerve injuries usually does NOT produce spontaneous EMG activity
during intraoperative monitoring?
,A
0/100 pts
Heat
Pressure
Ischemia
Irrigation - Answer Ischemia
Transcranial electrical motor evoked potentials are best recorded with which of the following
anesthetic regimens?
A
100/100 pts
Nitrous oxide 50% + Midazolam
Isoflurane .5 MAC + midazolam
Nitrous oxide 50% + isoflurane .5MAC
Propofol + Midazolam - Answer Propofol + Midazolam
What is the most common reason for loss of BAEPs during retromastoid microvascular
decompression?
A
100/100 pts
Cut the cochlear nerve
Injury to the facial nerve
Opening of the dura
Compromise vascular supply - Answer Compromise vascular supply
Stimulation of a breached L4 screw would most likely produce a CMAP from:
A
100/100 pts
Iliopsoas
Anal sphincter
Tibialis anterior
Abductor hallucis - Answer Tibialis anterior
The thalamus is involved in which pathways
A
,100/100 pts
Lateral corticospinal
Spinocerebellar
Dorsal column
Corticobulbar - Answer Dorsal column
If the EP waveform of interest is hard to distinguish from noise, which of the following would be
the best way to increase signal to noise resolution without affecting waveform morphology?
A
0/100 pts
Decrease HFF
Increase LFF
Smooth the average repeatedly
Increase the number of trials in each average - Answer Increase the number of trials in each
average
A lab calibrated their 30db intensity to be 0db HL. If they stimulated a patient at 90db from their
machines, what would be the stimulus intensity?
A
100/100 pts
60 HL
60 SL
90 HL
90 HL - Answer 60 HL
Dyskinesia
A
100/100 pts
Abnormal proprioception
Involuntary movement
Abnormal sensation
Abnormal ringing in ears - Answer Involuntary movement
When an electrode falls on the floor you:
A
100/100 pts
, Leave it until the end of surgery
You notify the circulator when they are not busy
You immediately pick it up
Cover it with a sterile drape - Answer You immediately pick it up
What lesion would cause ipsilateral cranial nerve impairment and contralateral motor deficit?
A
0/100 pts
Cortex
Brainstem
Spinal cord
Nerve - Answer Brainstem
Penetration of the sterile surgical field occurs when:
A
100/100 pts
A surgical tool falls on the floor
The surgeon's arm brushes recording equipment
The OR door is opened for personnel passage
The anesthesiologist administers intravenous medication - Answer The surgeon's arm
brushes recording equipment
Which of the following is a critical surgical event?
A
100/100 pts
Drilling of burr hole in skull
Decorticating of vertebral elements
Placing of muscle plug in the internal auditory canal
Resecting of tumor fragments during acoustic neuroma resection - Answer Resecting of
tumor fragments during acoustic neuroma resection
When monitoring facial nerve EMG, which of the following is an indicator of potential nerve
damage?
A
100/100 pts
Occasional burst of fibrillation potentials
Questions with Guaranteed Pass
Solutions 2026 Updated.
Which of the following temperatures should be annotated as being hypothermic?
34 degrees C
36 degrees C
38 degrees C
40 degrees C - Answer 34 degrees C
Which of the following is an appropriate bandpass for BAEPs?
1 - 100 Hz
5 - 1000Hz
100 - 2500 Hz
250 - 3000Hz - Answer 100 - 2500 Hz
The stimulation rate is determined by the
Analysis time
Number of stimulations
Stimulus intensity
Nerve conduction velocity - Answer Analysis time
The monitoring team must ensure that stimulus parameters are within safe limits to
A
0/100 pts
Avoid tissue damage
Protect equipment from breakdown
Minimize 60 Hz interference
Prevent chassis current leakage - Answer Avoid tissue damage
Which of the following nerve injuries usually does NOT produce spontaneous EMG activity
during intraoperative monitoring?
,A
0/100 pts
Heat
Pressure
Ischemia
Irrigation - Answer Ischemia
Transcranial electrical motor evoked potentials are best recorded with which of the following
anesthetic regimens?
A
100/100 pts
Nitrous oxide 50% + Midazolam
Isoflurane .5 MAC + midazolam
Nitrous oxide 50% + isoflurane .5MAC
Propofol + Midazolam - Answer Propofol + Midazolam
What is the most common reason for loss of BAEPs during retromastoid microvascular
decompression?
A
100/100 pts
Cut the cochlear nerve
Injury to the facial nerve
Opening of the dura
Compromise vascular supply - Answer Compromise vascular supply
Stimulation of a breached L4 screw would most likely produce a CMAP from:
A
100/100 pts
Iliopsoas
Anal sphincter
Tibialis anterior
Abductor hallucis - Answer Tibialis anterior
The thalamus is involved in which pathways
A
,100/100 pts
Lateral corticospinal
Spinocerebellar
Dorsal column
Corticobulbar - Answer Dorsal column
If the EP waveform of interest is hard to distinguish from noise, which of the following would be
the best way to increase signal to noise resolution without affecting waveform morphology?
A
0/100 pts
Decrease HFF
Increase LFF
Smooth the average repeatedly
Increase the number of trials in each average - Answer Increase the number of trials in each
average
A lab calibrated their 30db intensity to be 0db HL. If they stimulated a patient at 90db from their
machines, what would be the stimulus intensity?
A
100/100 pts
60 HL
60 SL
90 HL
90 HL - Answer 60 HL
Dyskinesia
A
100/100 pts
Abnormal proprioception
Involuntary movement
Abnormal sensation
Abnormal ringing in ears - Answer Involuntary movement
When an electrode falls on the floor you:
A
100/100 pts
, Leave it until the end of surgery
You notify the circulator when they are not busy
You immediately pick it up
Cover it with a sterile drape - Answer You immediately pick it up
What lesion would cause ipsilateral cranial nerve impairment and contralateral motor deficit?
A
0/100 pts
Cortex
Brainstem
Spinal cord
Nerve - Answer Brainstem
Penetration of the sterile surgical field occurs when:
A
100/100 pts
A surgical tool falls on the floor
The surgeon's arm brushes recording equipment
The OR door is opened for personnel passage
The anesthesiologist administers intravenous medication - Answer The surgeon's arm
brushes recording equipment
Which of the following is a critical surgical event?
A
100/100 pts
Drilling of burr hole in skull
Decorticating of vertebral elements
Placing of muscle plug in the internal auditory canal
Resecting of tumor fragments during acoustic neuroma resection - Answer Resecting of
tumor fragments during acoustic neuroma resection
When monitoring facial nerve EMG, which of the following is an indicator of potential nerve
damage?
A
100/100 pts
Occasional burst of fibrillation potentials
