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Cnim Ii Questions And Answers With Verified Solutions Already Passed!!!
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Cnim Ii Questions And Answers With Verified Solutions Already Passed!!!
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Cnim Ii Questions And Answers WithVerified Solutions Already Passed!!!
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 -
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 - 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
C- check the stimulating electrodes
D-check the computer settings - 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 - 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 - ANSWER✔✔ 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 - 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 - 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
D-Amplitude enhancement more than 100% of control amplitude - 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 - 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 - ANSWER✔✔ D
For procedures requiring hypothermia induced cerebral protection, the IOM tech
can note hypothermia is achieved with the loss of
A- P37
B- P22
, C- P14
D- N20 - ANSWER✔✔ C
How many waves of a 60 hz signal should you see in a 500 ms sweep
A- 5
B-15
C-12
D-30 - ANSWER✔✔ D
Which of the following would most affect the ability to obtain BAER recordings?
A- Monopolar Coagulator
B- Inhalational gas
C- Pneumatic drill
D- Retractor - ANSWER✔✔ A
Which of the following may cause a temporary threshold shift of the BAER
recording?
A- Warm irrigation
B- Drill
C- Cautery
D-CUSA - ANSWER✔✔ B
Which of the following is most likely to cause electrical interference for evoked
potential waveforms in the operation room?
A- Pneumatic drill
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