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CNIM Exam 3 Questions And Answers With Verified Solutions Already Passed!!!
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CNIM Exam 3 Questions And Answers With Verified Solutions Already Passed!!!
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CNIM Exam 3 Questions And AnswersWith Verified Solutions Already
Passed!!!
If the VIIIth nerve were transected, you would get
A- No change
B- Increased I-III latency
C- Loss of wave III - V
D- Absence of all waves I-V - ANSWER✔✔ D- Absence of all waves I-V
Epidural electrodes should be placed:
A- Inside the spinal cord
B- Between the dura and the spinal cord
C- Above the dura
D- Above the lamina - ANSWER✔✔ C- Above the dura
Early changes to CMAPs, during the exposure of CN VII, are most likely due to:
A- an increase in inhalation agents
B- severe blood loss
C- heating from the electrical cautery device
D- changes in the patient's state of consciousness - ANSWER✔✔ C- heating from
the electrical cautery device
,During posterior fossa exploration for tic douloureaux, the monitoring of median
nerve SSEPs will demonstrate the:
A- location of the trigeminal nerve
B- effect of retractor placement on the cochlear and vestibular nerves
C- integrity of the somatosensory system traversing brainstem structures
D- integrity of the brainstem - ANSWER✔✔ C- integrity of the somatosensory
system traversing brainstem structures
The effect of severe hypotension on the evoked potential includes
A- a decrease in amplitude and variable changes in latency
B- variable changes in amplitude and an increase in latency
C- an increase in amplitude and a decrease in latency
D- a decrease in amplitude and an increase in latency - ANSWER✔✔ D- a decrease
in amplitude and an increase in latency
Aliasing is the result of:
A- Low input impedance
B- Sampling above the Nyquist frequency
C- Sampling below the Nyquist frequency
D- High recording electrode impedance - ANSWER✔✔ C- Sampling below the
Nyquist frequency
,Lhermitte's Sign
A- Bell's palsy
B- Patellar reflex
C- Optic tract lesion
D- Spinal cord lesion - ANSWER✔✔ D- Spinal cord lesion
Alternating clicks can be used to:
A- Eliminate stimulus artifact
B- Enhance the cochlear microphonic
C- Evaluate left and right sides simultaneously
D- Increase wave I amplitude - ANSWER✔✔ A- Eliminate stimulus artifact
While stimulating cranial nerve VII, a bipolar type stimulator has an advantage
over a monopolar stimulator by:
A- being less expensive
B- presenting less risk of damage to the neural tissue
C- requiring less current
D- having greater specificity - ANSWER✔✔ D- having greater specificity
The input impedance of a differential amplifier must be at least:
, A- 10 megaohms
B- <10 megaohms
C- 100 megaohms
D- <5 Kohms - ANSWER✔✔ C- 100 megaohms
A constant voltage stimulator
A- maintains a constant voltage of 100 volts
B- maintains a current level of 10 mA
C- varies the current in order to maintain a preset voltage level
D- varies the output in order to maintain a preset current level - ANSWER✔✔ C-
varies the current in order to maintain a preset voltage level
What muscle would you monitor for EMG activity for cranial nerve XII?
A- Trapezius
B- Tongue
C- Frontalis
D- Masseter - ANSWER✔✔ B- Tongue
Evoked potential systems must be calibrated a MINIMUM of once every:
A- One year
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