1. Which modality is best for monitoring corticospinal tract function?
A. SSEPs
B. BAEPs
C. MEPs
D. EMG
Answer: C
Rationale: MEPs directly assess corticospinal tract integrity.
2. Which muscle group is typically monitored for MEPs during
cervical spine surgeries?
A. Quadriceps
B. Biceps
C. Thenar muscles
D. Soleus
Answer: C
Rationale: Thenar muscles are often used for monitoring MEPs during
cervical spine procedures.
3. During brain surgery, which modality helps monitor cortical
ischemia?
,A. MEPs
B. EEG
C. BAEPs
D. EMG
Answer: B
Rationale: EEG is sensitive to changes in cortical activity and is used to
detect ischemia.
4. What type of stimulation is used in transcranial motor evoked
potentials?
A. Electrical
B. Magnetic
C. Thermal
D. Mechanical
Answer: A
Rationale: Electrical stimulation is commonly used in transcranial
MEPs to activate motor pathways.
5. Which modality is commonly used to monitor the spinal cord during
scoliosis surgery?
A. EEG
B. MEPs and SSEPs
C. BAEPs
, D. Free-running EMG
Answer: B
Rationale: Both MEPs and SSEPs are used to monitor motor and
sensory pathways to ensure spinal cord integrity during scoliosis
correction.
6. Which nerve is commonly monitored using electromyography
(EMG) during lumbar spine surgeries?
A. Facial nerve
B. Tibial nerve
C. Peroneal nerve
D. Sciatic nerve
Answer: C
Rationale: The peroneal nerve is often monitored during lumbar
surgeries to detect nerve irritation or injury.
7. What does a prolongation of SSEP latency indicate?
A. Improved neural conduction
B. Anesthesia-related suppression
C. Delayed conduction due to neural compromise
D. Loss of sensory pathways
Answer: C
A. SSEPs
B. BAEPs
C. MEPs
D. EMG
Answer: C
Rationale: MEPs directly assess corticospinal tract integrity.
2. Which muscle group is typically monitored for MEPs during
cervical spine surgeries?
A. Quadriceps
B. Biceps
C. Thenar muscles
D. Soleus
Answer: C
Rationale: Thenar muscles are often used for monitoring MEPs during
cervical spine procedures.
3. During brain surgery, which modality helps monitor cortical
ischemia?
,A. MEPs
B. EEG
C. BAEPs
D. EMG
Answer: B
Rationale: EEG is sensitive to changes in cortical activity and is used to
detect ischemia.
4. What type of stimulation is used in transcranial motor evoked
potentials?
A. Electrical
B. Magnetic
C. Thermal
D. Mechanical
Answer: A
Rationale: Electrical stimulation is commonly used in transcranial
MEPs to activate motor pathways.
5. Which modality is commonly used to monitor the spinal cord during
scoliosis surgery?
A. EEG
B. MEPs and SSEPs
C. BAEPs
, D. Free-running EMG
Answer: B
Rationale: Both MEPs and SSEPs are used to monitor motor and
sensory pathways to ensure spinal cord integrity during scoliosis
correction.
6. Which nerve is commonly monitored using electromyography
(EMG) during lumbar spine surgeries?
A. Facial nerve
B. Tibial nerve
C. Peroneal nerve
D. Sciatic nerve
Answer: C
Rationale: The peroneal nerve is often monitored during lumbar
surgeries to detect nerve irritation or injury.
7. What does a prolongation of SSEP latency indicate?
A. Improved neural conduction
B. Anesthesia-related suppression
C. Delayed conduction due to neural compromise
D. Loss of sensory pathways
Answer: C
