P a g e |1
CNIM 4 EXAM|| ACTUAL EXAM ALL QUESTIONS
AND 100% CORRECT ANSWERS ALREADY
GRADED A+|| LATEST AND COMPLETE VERSION
2024-2025 WITH EXPERT VERIFIED SOLUTIONS||
ASSURED PASS!!!
Which of the following components is most likely to be increased in amplitude by
synchronous bilateral stimulation of tibial nerves?
A- P37
B- PF
C- N13
D- N20 - ANSWER> A- P37
The criteria of abnormality during intraoperative EP monitoring are based on a
comparison of amplitude and latency to:
A- Post-induction baselines
B- Lab normative data
C- Intraoperative normative data
D- Pre-induction baselines - ANSWER> A- Post-induction baselines
Which of the following nerve injuries usually does NOT produce spontaneous
EMG activity during intraoperative monitoring?
A- Ischemia
B- Irrigation
C- Pressure
D- Heat - ANSWER> A- Ischemia
, P a g e |2
Which of the following is considered HIPPA protected patient information?
A- Sexual orientation
B- Patient name
C- Height
D- Weight - ANSWER> B- Patient name
Which of the following diseases results from infection by a bloodborne pathogen?
A- Hepatitis B
B- Varicella
C- Herpes zoster
D- Mononucleosis - ANSWER> A- Hepatitis B
Which is required to prevent aliasing of a signal?
A- Use a stimulus frequency below the Nyquist
B- Sampling below the Nyquist frequency
C- Setting the timebase to at least 100 mS
D- Sampling at least the Nyquist frequency - ANSWER> D- Sampling at least the
Nyquist frequency
An objective measure of meaningful change to use to warn the surgeon is the
A- IPL decrease
B- 10% amplitude decrease
C- Latency decrease
D- 50% amplitude decrease - ANSWER> D- 50% amplitude decrease
, P a g e |3
During WADA language testing, what should you expect after injection of sodium
amytal?
A- Bilateral cortex slow wave activity increase
B- Contralateral cortex slow wave activity increase
C- Ipsilateral cortex slow wave activity increase
D- Bilateral fast wave activity increase - ANSWER> C- Ipsilateral cortex slow
wave activity increase
Which of the following is a common complication of microvascular
decompression of cranial nerve VII?
A- Lower extremity weakness
B- Visual loss
C- Hearing loss
D- Upper extremity weakness - ANSWER> C- Hearing loss
The use of intraoperative monitoring during scoliosis surgery may replace the
A- Hoffman sign
B- Romberg test
C- Babinski sign
D- Stagnara test - ANSWER> D- Stagnara test
4-137 If you need 100 trials to get a SNR of 2:1, how many trials are needed for a
SNR of 20:1?
A- 10,000
B- 1000
C- 20,000
D- 2000 - ANSWER> A- 10,000
, P a g e |4
A dorsal rhizotomy involves:
A- Cutting motor roots
B- Resection of the filum terminale
C- Removing a tumor
D- Cutting sensory roots - ANSWER> D- Cutting sensory roots
Phase reversal of SSEPs following intraoperative median nerve stimulation is used
for localizing:
A- Occipital cortex
B- Thalamic sensory pathway
C- Language area
D- Sensorimotor cortex - ANSWER> D- Sensorimotor cortex
While performing a posterior tibial SSEP, hypothermia of the lower extremities is
most likely to cause
A- Increased T12‐P37 latency
B- Increased L3‐P37 latency
C- Abnormal prolongation of the P37‐N45 complex
D- Slowed peripheral conduction velocity - ANSWER> D- Slowed peripheral
conduction velocity
Which is characteristic of AC polarity?
A- Abnormal I‐V intervals
B- No effect on wave I amplitude
C- Reduces stimulation artifact
CNIM 4 EXAM|| ACTUAL EXAM ALL QUESTIONS
AND 100% CORRECT ANSWERS ALREADY
GRADED A+|| LATEST AND COMPLETE VERSION
2024-2025 WITH EXPERT VERIFIED SOLUTIONS||
ASSURED PASS!!!
Which of the following components is most likely to be increased in amplitude by
synchronous bilateral stimulation of tibial nerves?
A- P37
B- PF
C- N13
D- N20 - ANSWER> A- P37
The criteria of abnormality during intraoperative EP monitoring are based on a
comparison of amplitude and latency to:
A- Post-induction baselines
B- Lab normative data
C- Intraoperative normative data
D- Pre-induction baselines - ANSWER> A- Post-induction baselines
Which of the following nerve injuries usually does NOT produce spontaneous
EMG activity during intraoperative monitoring?
A- Ischemia
B- Irrigation
C- Pressure
D- Heat - ANSWER> A- Ischemia
, P a g e |2
Which of the following is considered HIPPA protected patient information?
A- Sexual orientation
B- Patient name
C- Height
D- Weight - ANSWER> B- Patient name
Which of the following diseases results from infection by a bloodborne pathogen?
A- Hepatitis B
B- Varicella
C- Herpes zoster
D- Mononucleosis - ANSWER> A- Hepatitis B
Which is required to prevent aliasing of a signal?
A- Use a stimulus frequency below the Nyquist
B- Sampling below the Nyquist frequency
C- Setting the timebase to at least 100 mS
D- Sampling at least the Nyquist frequency - ANSWER> D- Sampling at least the
Nyquist frequency
An objective measure of meaningful change to use to warn the surgeon is the
A- IPL decrease
B- 10% amplitude decrease
C- Latency decrease
D- 50% amplitude decrease - ANSWER> D- 50% amplitude decrease
, P a g e |3
During WADA language testing, what should you expect after injection of sodium
amytal?
A- Bilateral cortex slow wave activity increase
B- Contralateral cortex slow wave activity increase
C- Ipsilateral cortex slow wave activity increase
D- Bilateral fast wave activity increase - ANSWER> C- Ipsilateral cortex slow
wave activity increase
Which of the following is a common complication of microvascular
decompression of cranial nerve VII?
A- Lower extremity weakness
B- Visual loss
C- Hearing loss
D- Upper extremity weakness - ANSWER> C- Hearing loss
The use of intraoperative monitoring during scoliosis surgery may replace the
A- Hoffman sign
B- Romberg test
C- Babinski sign
D- Stagnara test - ANSWER> D- Stagnara test
4-137 If you need 100 trials to get a SNR of 2:1, how many trials are needed for a
SNR of 20:1?
A- 10,000
B- 1000
C- 20,000
D- 2000 - ANSWER> A- 10,000
, P a g e |4
A dorsal rhizotomy involves:
A- Cutting motor roots
B- Resection of the filum terminale
C- Removing a tumor
D- Cutting sensory roots - ANSWER> D- Cutting sensory roots
Phase reversal of SSEPs following intraoperative median nerve stimulation is used
for localizing:
A- Occipital cortex
B- Thalamic sensory pathway
C- Language area
D- Sensorimotor cortex - ANSWER> D- Sensorimotor cortex
While performing a posterior tibial SSEP, hypothermia of the lower extremities is
most likely to cause
A- Increased T12‐P37 latency
B- Increased L3‐P37 latency
C- Abnormal prolongation of the P37‐N45 complex
D- Slowed peripheral conduction velocity - ANSWER> D- Slowed peripheral
conduction velocity
Which is characteristic of AC polarity?
A- Abnormal I‐V intervals
B- No effect on wave I amplitude
C- Reduces stimulation artifact
