CNIM II Exam Questions & Answers
(Grade A+)
According to the ACNS guidelines, baseline data should be
established
A- Prior to incision
B- Prior to induction
C- Prior to instrumentation
D- Following positioning, but prior to surgical manipulation of
nervous system -
correct answer ✅D
According the ACNS guidelines, what is the recommended
placement of the ground for a cervical procedure?
A- Neck
B-Hand
C-Forearm
D-Shoulder -
correct answer ✅C
If all waveforms for the upper left SSEP attenuate except for the
erb's channel waveform, what should you do?
A- continue monitoring without alarm
B- Notify the surgeon immediately
,CNIM II Exam Questions & Answers
(Grade A+)
C- check the stimulating electrodes
D-check the computer settings -
correct answer ✅B
A sudden loss of wave V of the ipsilateral BAEP during micro
vascular decompression for trigeminal neuralgia is most consistent
with
A- dislodging of tubing/transducer from ear canal
B- traction on the vestibulocochlear nerve
C- ischemic injury
D- increase in dosage of inhaled anesthetics -
correct answer ✅C
Waveform changes should be reported to the surgeon as quickly as
possible when
A- Critical structures are approached surgically
B- cautery is in use
C- a physician opinion is needed
D- monopolar cautery is in use -
correct answer ✅A
,CNIM II Exam Questions & Answers
(Grade A+)
Which for the following should be reported to the surgeon
A- Loss of response
B- Increase in stimulus intensity
C- change in time base
D- switch to back up electrodes -
correct answer ✅A
When monitoring BAEPs intraoperative, it is recommended to warn
the surgeon when an increase of which of the following occurs?
A- Latency of wave V of less than 1.0 msec
B- latency of wave I of 1 msec
C- Interpeak latency of I-V of 1.0 msec or less
D- Latency of wave V of 1.0 msec or greater -
correct answer ✅C
The warning signal for deteriorating EP's during surgical monitoring
is
A- Latency shortening more than 10%
B- Amplitude reduction to 10 % of control amplitude
C- Amplitude reduction more than 50% of control amplitude
, CNIM II Exam Questions & Answers
(Grade A+)
D-Amplitude enhancement more than 100% of control amplitude -
correct answer ✅C
An objective measure meaningful change to use to warn the
surgeon is the
A- Interpeak latency decrease
B- latency decrease
C- 50% amplitude decrease
D- 10% amplitude decrease -
correct answer ✅C
During a lumbar decompression, the CZ-FPZ left lower extremity
cortical waveform amplitude drops below 50% of baseline while the
C3-C4 left lower extremity cortical waveform amplitude maintains
unchanged, what is the appropriate action to take
A- Check the impedances
B- check the subcortical waveform for any changes
C- Notify the surgeon immediately
D- Continue monitoring without alarming surgeon -
correct answer ✅D
(Grade A+)
According to the ACNS guidelines, baseline data should be
established
A- Prior to incision
B- Prior to induction
C- Prior to instrumentation
D- Following positioning, but prior to surgical manipulation of
nervous system -
correct answer ✅D
According the ACNS guidelines, what is the recommended
placement of the ground for a cervical procedure?
A- Neck
B-Hand
C-Forearm
D-Shoulder -
correct answer ✅C
If all waveforms for the upper left SSEP attenuate except for the
erb's channel waveform, what should you do?
A- continue monitoring without alarm
B- Notify the surgeon immediately
,CNIM II Exam Questions & Answers
(Grade A+)
C- check the stimulating electrodes
D-check the computer settings -
correct answer ✅B
A sudden loss of wave V of the ipsilateral BAEP during micro
vascular decompression for trigeminal neuralgia is most consistent
with
A- dislodging of tubing/transducer from ear canal
B- traction on the vestibulocochlear nerve
C- ischemic injury
D- increase in dosage of inhaled anesthetics -
correct answer ✅C
Waveform changes should be reported to the surgeon as quickly as
possible when
A- Critical structures are approached surgically
B- cautery is in use
C- a physician opinion is needed
D- monopolar cautery is in use -
correct answer ✅A
,CNIM II Exam Questions & Answers
(Grade A+)
Which for the following should be reported to the surgeon
A- Loss of response
B- Increase in stimulus intensity
C- change in time base
D- switch to back up electrodes -
correct answer ✅A
When monitoring BAEPs intraoperative, it is recommended to warn
the surgeon when an increase of which of the following occurs?
A- Latency of wave V of less than 1.0 msec
B- latency of wave I of 1 msec
C- Interpeak latency of I-V of 1.0 msec or less
D- Latency of wave V of 1.0 msec or greater -
correct answer ✅C
The warning signal for deteriorating EP's during surgical monitoring
is
A- Latency shortening more than 10%
B- Amplitude reduction to 10 % of control amplitude
C- Amplitude reduction more than 50% of control amplitude
, CNIM II Exam Questions & Answers
(Grade A+)
D-Amplitude enhancement more than 100% of control amplitude -
correct answer ✅C
An objective measure meaningful change to use to warn the
surgeon is the
A- Interpeak latency decrease
B- latency decrease
C- 50% amplitude decrease
D- 10% amplitude decrease -
correct answer ✅C
During a lumbar decompression, the CZ-FPZ left lower extremity
cortical waveform amplitude drops below 50% of baseline while the
C3-C4 left lower extremity cortical waveform amplitude maintains
unchanged, what is the appropriate action to take
A- Check the impedances
B- check the subcortical waveform for any changes
C- Notify the surgeon immediately
D- Continue monitoring without alarming surgeon -
correct answer ✅D
