1. Which technique is most commonly used to assess the integrity
of the auditory pathways during surgery near the temporal bone?
A. Somatosensory evoked potentials (SSEP)
B. Brainstem auditory evoked potentials (BAEP)
C. Motor evoked potentials (MEP)
D. Transcranial Doppler ultrasound
Answer: B) Brainstem auditory evoked potentials (BAEP)
Rationale: BAEPs are most commonly used to assess auditory
pathway integrity, particularly during surgeries near the temporal
bone or auditory pathways.
2. What is the best response when there is a significant decrease
in somatosensory evoked potentials (SSEP) during spinal surgery?
A. Continue surgery without changes
B. Increase anesthesia depth
C. Stop surgery and assess the cause of the decline
D. Increase muscle relaxation
Answer: C) Stop surgery and assess the cause of the decline
Rationale: A significant decrease in SSEP indicates potential
injury or ischemia, and immediate action must be taken to prevent
further damage.
,3. Which of the following is commonly used to monitor brainstem
integrity during surgery?
A. Electroencephalography (EEG)
B. Somatosensory evoked potentials (SSEP)
C. Brainstem auditory evoked potentials (BAEP)
D. Motor evoked potentials (MEP)
Answer: C) Brainstem auditory evoked potentials (BAEP)
Rationale: BAEPs are used to monitor the integrity of the
auditory pathways, particularly the brainstem, during surgeries
that may affect brainstem function.
4. The "alarm" criteria for intraoperative monitoring typically
refers to:
A. Immediate alert of abnormal brain activity
B. Sensory pathway recovery during surgery
C. Changes in neurophysiological signals requiring surgical
intervention
D. Normal function of motor pathways
Answer: C) Changes in neurophysiological signals requiring
surgical intervention
Rationale: Alarm criteria are set thresholds for changes in
neurophysiological signals, such as loss of amplitude or delay,
which indicate a problem requiring corrective action.
, 5. Which of the following best describes the purpose of
monitoring the somatosensory evoked potential (SSEP) during
spinal cord surgery?
A. Ensure proper patient positioning
B. Prevent compression or ischemia of the spinal cord
C. Monitor cerebral perfusion
D. Evaluate muscle function
Answer: B) Prevent compression or ischemia of the spinal cord
Rationale: SSEPs help monitor the integrity of sensory pathways
and detect any signs of spinal cord injury or ischemia during
surgery.
6. A significant decrease in amplitude of somatosensory evoked
potentials (SSEP) during a cervical spine procedure suggests:
A. A successful decompression
B. A potential injury to the cervical spinal cord
C. An improvement in blood flow
D. Optimal patient positioning
Answer: B) A potential injury to the cervical spinal cord
Rationale: A decrease in SSEP amplitude can indicate damage or
compression of the cervical spinal cord, requiring immediate
action to prevent permanent injury.
of the auditory pathways during surgery near the temporal bone?
A. Somatosensory evoked potentials (SSEP)
B. Brainstem auditory evoked potentials (BAEP)
C. Motor evoked potentials (MEP)
D. Transcranial Doppler ultrasound
Answer: B) Brainstem auditory evoked potentials (BAEP)
Rationale: BAEPs are most commonly used to assess auditory
pathway integrity, particularly during surgeries near the temporal
bone or auditory pathways.
2. What is the best response when there is a significant decrease
in somatosensory evoked potentials (SSEP) during spinal surgery?
A. Continue surgery without changes
B. Increase anesthesia depth
C. Stop surgery and assess the cause of the decline
D. Increase muscle relaxation
Answer: C) Stop surgery and assess the cause of the decline
Rationale: A significant decrease in SSEP indicates potential
injury or ischemia, and immediate action must be taken to prevent
further damage.
,3. Which of the following is commonly used to monitor brainstem
integrity during surgery?
A. Electroencephalography (EEG)
B. Somatosensory evoked potentials (SSEP)
C. Brainstem auditory evoked potentials (BAEP)
D. Motor evoked potentials (MEP)
Answer: C) Brainstem auditory evoked potentials (BAEP)
Rationale: BAEPs are used to monitor the integrity of the
auditory pathways, particularly the brainstem, during surgeries
that may affect brainstem function.
4. The "alarm" criteria for intraoperative monitoring typically
refers to:
A. Immediate alert of abnormal brain activity
B. Sensory pathway recovery during surgery
C. Changes in neurophysiological signals requiring surgical
intervention
D. Normal function of motor pathways
Answer: C) Changes in neurophysiological signals requiring
surgical intervention
Rationale: Alarm criteria are set thresholds for changes in
neurophysiological signals, such as loss of amplitude or delay,
which indicate a problem requiring corrective action.
, 5. Which of the following best describes the purpose of
monitoring the somatosensory evoked potential (SSEP) during
spinal cord surgery?
A. Ensure proper patient positioning
B. Prevent compression or ischemia of the spinal cord
C. Monitor cerebral perfusion
D. Evaluate muscle function
Answer: B) Prevent compression or ischemia of the spinal cord
Rationale: SSEPs help monitor the integrity of sensory pathways
and detect any signs of spinal cord injury or ischemia during
surgery.
6. A significant decrease in amplitude of somatosensory evoked
potentials (SSEP) during a cervical spine procedure suggests:
A. A successful decompression
B. A potential injury to the cervical spinal cord
C. An improvement in blood flow
D. Optimal patient positioning
Answer: B) A potential injury to the cervical spinal cord
Rationale: A decrease in SSEP amplitude can indicate damage or
compression of the cervical spinal cord, requiring immediate
action to prevent permanent injury.
