1. Which type of monitoring is especially valuable during aortic
aneurysm repair to assess the spinal cord?
A. Brainstem auditory evoked potentials (BAEP)
B. Motor evoked potentials (MEPs)
C. Somatosensory evoked potentials (SSEP)
D. Transcranial Doppler ultrasound
Answer: C) Somatosensory evoked potentials (SSEP)
Rationale: SSEPs are crucial for monitoring spinal cord integrity
during aortic aneurysm repair, as the procedure can potentially
affect spinal cord blood supply.
2. When monitoring the somatosensory evoked potentials (SSEP)
in a lower limb, which of the following nerves is commonly
stimulated?
A. Tibial nerve
B. Median nerve
C. Femoral nerve
D. Ulnar nerve
Answer: A) Tibial nerve
Rationale: The tibial nerve is commonly stimulated in lower limb
surgeries to monitor SSEP responses from the sensory pathways.
,3. 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.
4. The most critical action if there is a significant drop in
amplitude during intraoperative monitoring of somatosensory
evoked potentials (SSEP) is:
A. Adjust the anesthetic level
B. Discontinue the surgery immediately
C. Notify the surgical team and check for potential neural
compromise
D. Increase muscle relaxation
Answer: C) Notify the surgical team and check for potential neural
compromise
, Rationale: A drop in amplitude suggests potential injury or
ischemia, requiring immediate assessment to protect neural
structures.
5. Which of the following is an advantage of using transcranial
magnetic stimulation (TMS) over electrical stimulation for motor
evoked potentials (MEPs)?
A. Reduced risk of seizure induction
B. More precise measurement of muscle contractions
C. Easier to adjust anesthetic agents
D. More effective in detecting sensory pathway dysfunction
Answer: A) Reduced risk of seizure induction
Rationale: TMS is less likely to induce seizures compared to
transcranial electrical stimulation, making it a safer alternative
for certain patient populations.
6. In intraoperative neuromonitoring, which technique is used to
assess the integrity of the brainstem during surgery?
A. Electroencephalography (EEG)
B. Brainstem auditory evoked potentials (BAEP)
C. Somatosensory evoked potentials (SSEP)
D. Motor evoked potentials (MEP)
Answer: B) Brainstem auditory evoked potentials (BAEP)
aneurysm repair to assess the spinal cord?
A. Brainstem auditory evoked potentials (BAEP)
B. Motor evoked potentials (MEPs)
C. Somatosensory evoked potentials (SSEP)
D. Transcranial Doppler ultrasound
Answer: C) Somatosensory evoked potentials (SSEP)
Rationale: SSEPs are crucial for monitoring spinal cord integrity
during aortic aneurysm repair, as the procedure can potentially
affect spinal cord blood supply.
2. When monitoring the somatosensory evoked potentials (SSEP)
in a lower limb, which of the following nerves is commonly
stimulated?
A. Tibial nerve
B. Median nerve
C. Femoral nerve
D. Ulnar nerve
Answer: A) Tibial nerve
Rationale: The tibial nerve is commonly stimulated in lower limb
surgeries to monitor SSEP responses from the sensory pathways.
,3. 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.
4. The most critical action if there is a significant drop in
amplitude during intraoperative monitoring of somatosensory
evoked potentials (SSEP) is:
A. Adjust the anesthetic level
B. Discontinue the surgery immediately
C. Notify the surgical team and check for potential neural
compromise
D. Increase muscle relaxation
Answer: C) Notify the surgical team and check for potential neural
compromise
, Rationale: A drop in amplitude suggests potential injury or
ischemia, requiring immediate assessment to protect neural
structures.
5. Which of the following is an advantage of using transcranial
magnetic stimulation (TMS) over electrical stimulation for motor
evoked potentials (MEPs)?
A. Reduced risk of seizure induction
B. More precise measurement of muscle contractions
C. Easier to adjust anesthetic agents
D. More effective in detecting sensory pathway dysfunction
Answer: A) Reduced risk of seizure induction
Rationale: TMS is less likely to induce seizures compared to
transcranial electrical stimulation, making it a safer alternative
for certain patient populations.
6. In intraoperative neuromonitoring, which technique is used to
assess the integrity of the brainstem during surgery?
A. Electroencephalography (EEG)
B. Brainstem auditory evoked potentials (BAEP)
C. Somatosensory evoked potentials (SSEP)
D. Motor evoked potentials (MEP)
Answer: B) Brainstem auditory evoked potentials (BAEP)
