1. What is the significance of the alarm criteria in IONM?
A. To detect technical artifacts
B. To notify surgeons of potential neurologic injury
C. To adjust anesthesia levels
D. To record patient movements
Answer: B
Rationale: Alarm criteria guide the team in recognizing significant
changes in monitoring signals that could indicate neurological
compromise.
2. Which modality uses click stimuli for neural monitoring?
A. SSEPs
B. MEPs
C. BAEPs
D. EMG
Answer: C
Rationale: BAEPs use auditory click stimuli to assess auditory pathway
integrity.
3. What is the role of a baseline recording in IONM?
,A. To identify technical issues
B. To establish normal patient responses
C. To predict postoperative outcomes
D. To monitor anesthesia depth
Answer: B
Rationale: Baseline recordings establish the patient’s normal responses
for comparison during surgery.
4. 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.
5. Why are BAEPs used during posterior fossa surgery?
A. To monitor cranial nerve VIII
B. To assess spinal cord integrity
C. To evaluate sensory pathways
, D. To detect peripheral nerve injury
Answer: A
Rationale: BAEPs are used to monitor the function of cranial nerve
VIII and auditory pathways during posterior fossa surgeries.
6. Which response indicates nerve irritation during free-running
EMG?
A. Loss of signal
B. Bursts of activity
C. Increased amplitude of SSEPs
D. Reduced signal latency
Answer: B
Rationale: Bursts of EMG activity suggest nerve irritation or potential
injury.
7. Which modality is the most sensitive to ischemia during spine
surgery?
A. SSEPs
B. MEPs
C. BAEPs
D. EEG
Answer: B
A. To detect technical artifacts
B. To notify surgeons of potential neurologic injury
C. To adjust anesthesia levels
D. To record patient movements
Answer: B
Rationale: Alarm criteria guide the team in recognizing significant
changes in monitoring signals that could indicate neurological
compromise.
2. Which modality uses click stimuli for neural monitoring?
A. SSEPs
B. MEPs
C. BAEPs
D. EMG
Answer: C
Rationale: BAEPs use auditory click stimuli to assess auditory pathway
integrity.
3. What is the role of a baseline recording in IONM?
,A. To identify technical issues
B. To establish normal patient responses
C. To predict postoperative outcomes
D. To monitor anesthesia depth
Answer: B
Rationale: Baseline recordings establish the patient’s normal responses
for comparison during surgery.
4. 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.
5. Why are BAEPs used during posterior fossa surgery?
A. To monitor cranial nerve VIII
B. To assess spinal cord integrity
C. To evaluate sensory pathways
, D. To detect peripheral nerve injury
Answer: A
Rationale: BAEPs are used to monitor the function of cranial nerve
VIII and auditory pathways during posterior fossa surgeries.
6. Which response indicates nerve irritation during free-running
EMG?
A. Loss of signal
B. Bursts of activity
C. Increased amplitude of SSEPs
D. Reduced signal latency
Answer: B
Rationale: Bursts of EMG activity suggest nerve irritation or potential
injury.
7. Which modality is the most sensitive to ischemia during spine
surgery?
A. SSEPs
B. MEPs
C. BAEPs
D. EEG
Answer: B
