CNIM Exam 2 with all Correct & 100% Verified Answers |
Actual Complete Exam |Already Graded A+
Diabetes Mellitus ✔Correct Answer-Peripheral Neuropathy
To display median nerve SSEP response as an upward deflection, which of the following must be
known? ✔Correct Answer-Waveform polarity and polarity convention of the amplifier inputs
The facial nerve enervates all of the following structures except: ✔Correct Answer-Tensor veli
palatini muscle
For preoperative posterior tibial somatosensory evoked potentials, which of the following would
be the best ipsilateral location for the ground electrode? ✔Correct Answer-Calf
"Central Cord Syndrome" results in: ✔Correct Answer-Loss of function at the level damaged
due to disruption of gray matter
Intraoperative evoked potential monitoring criteria of abnormality are based on a comparison
of amplitude and latency to ✔Correct Answer-Post incision baseline
The resting membrane potential is created by differences between the inside and outside of the
cell in ion concentrations of ✔Correct Answer-K+, Na+, & Cl-
It is most important for intraoperative monitoring records to include notations of ✔Correct
Answer-Surgical events
The Nyquist frequency is ✔Correct Answer-Twice as great as the highest frequency
D waves are recorded from which of the following electrodes? ✔Correct Answer-Epidural
electrodes over the spinal cord
Signal - to - noise ratio relates to which of the following? ✔Correct Answer-The amplitude of
the evoked response components to the amplitude of the unrelated components
Which of the following is the down going potential recorded at about 12 msec following
stimulation of the ear in the above diagram? ✔Correct Answer-Postauricular muscle reflex
Inflammation of the covering of the brain or spinal cord is called: ✔Correct Answer-Meningitis
The use of intraoperative monitoring during scoliosis surgery may replace the ✔Correct
Answer-Romberg test
,P14 is a far field, sub cortically generated response which probably reflects ✔Correct Answer-
Caudal medial lemniscal activity
Scalp-to-noncephalic reference ✔Correct Answer-Fz-C5S
A post incision baseline recording is used to ✔Correct Answer-Establish a standard for the
patient
The ulnar nerve is formed at spinal levels: ✔Correct Answer-C7-T1
Which of the following systolic blood pressures is most likely to attenuate the evoked potential?
✔Correct Answer-120 mm/Hg
With a sampling rate of 10 kHz the shortest sine wave resolved would be ✔Correct Answer-
0.2 msec
During a median nerve preoperative study, a patient has discomfort at the wrist. Stimulation
electrodes are 10 mm gold disk, stimulus intensity is 20 mA, and a stimulus duration is 100 usec.
Which of the following would most likely reduce the patient's discomfort while maintaining
adequate stimulation? ✔Correct Answer-Decrease number of repetitions
To dissect a vestibular schwannoma, which surgical approach usually sacrifices hearing?
✔Correct Answer-Translabyrinthine
Exteroceptors and proprioceptors include all of the following except: ✔Correct Answer-
Tectorial membrane
Penetration of the sterile surgical field occurs when ✔Correct Answer-The surgeon's arm
brushes against the recording equipment
On the SSEP, the electrode at _____ records a spinal cord response. ✔Correct Answer-T12
Which of the following cranial nerves is most appropriate to monitor during resection of a 4 cm
vestibular schwannoma? ✔Correct Answer-Facial
Blood supply to the spinal cord: ✔Correct Answer-Is by an anterior spinal artery and two
posterior spinal arteries
In recording electrocochleograms it is best to stimulate using ✔Correct Answer-Rarefaction of
condensation clicks
The section of the brainstem that is continuous with the spinal cord and includes the
decussation of the pyramids, is the ✔Correct Answer-Medulla oblongata
, The purpose of interbody cages is often to ✔Correct Answer-Restore lost disc height
The capacity to resolve amplitudes of 256 discrete steps would require an 8 bit A-to-D
converter. This can be represented by: ✔Correct Answer-2^8
An increase in stimulation intensity causes a linear increase of which of the following SSEP
components? ✔Correct Answer-P31
Spinal nerves are attached in series to the sides of the spinal cord and emerge through
✔Correct Answer-Intervertebral foramina
What is the maximum allowable leakage of evoked potential instrument chassis current?
✔Correct Answer-100 microamperes
If EEG is preserved during carotid endarterectomy surgery, it indicates ✔Correct Answer-
Adequate cortical perfusion and oxygenation
The two most important landmarks which are used to establish electrode placement in the 10-
20 system are the: ✔Correct Answer-The inion and nasion
To prevent ground loops, the patient should: ✔Correct Answer-Never be connected to more
than one ground
The response component at A can best be described as ✔Correct Answer-Near-field
Upper extremity SSEPs are transmitted through the: ✔Correct Answer-Cuneate nucleus
Diazepam (valium), Lorazepam (Ativan), and Clonazepam (Clonopin) are: ✔Correct Answer-
Benzodiazepines
Which of the following would most affect the ability to record BAEPs? ✔Correct Answer-
Coagulator
The common mode rejection ratio of amplifiers used for EP recording should be at least
✔Correct Answer-10,000:1
A contraindication for the use of transcranial magnetic stimulation is ✔Correct Answer-A
cardiac pacemaker in place
Which of the following is an example of an SSEP far-field subcortical potential? ✔Correct
Answer-N34
The branches of the facial nerve include all of the following except: ✔Correct Answer-
Thyroarytenoid
Actual Complete Exam |Already Graded A+
Diabetes Mellitus ✔Correct Answer-Peripheral Neuropathy
To display median nerve SSEP response as an upward deflection, which of the following must be
known? ✔Correct Answer-Waveform polarity and polarity convention of the amplifier inputs
The facial nerve enervates all of the following structures except: ✔Correct Answer-Tensor veli
palatini muscle
For preoperative posterior tibial somatosensory evoked potentials, which of the following would
be the best ipsilateral location for the ground electrode? ✔Correct Answer-Calf
"Central Cord Syndrome" results in: ✔Correct Answer-Loss of function at the level damaged
due to disruption of gray matter
Intraoperative evoked potential monitoring criteria of abnormality are based on a comparison
of amplitude and latency to ✔Correct Answer-Post incision baseline
The resting membrane potential is created by differences between the inside and outside of the
cell in ion concentrations of ✔Correct Answer-K+, Na+, & Cl-
It is most important for intraoperative monitoring records to include notations of ✔Correct
Answer-Surgical events
The Nyquist frequency is ✔Correct Answer-Twice as great as the highest frequency
D waves are recorded from which of the following electrodes? ✔Correct Answer-Epidural
electrodes over the spinal cord
Signal - to - noise ratio relates to which of the following? ✔Correct Answer-The amplitude of
the evoked response components to the amplitude of the unrelated components
Which of the following is the down going potential recorded at about 12 msec following
stimulation of the ear in the above diagram? ✔Correct Answer-Postauricular muscle reflex
Inflammation of the covering of the brain or spinal cord is called: ✔Correct Answer-Meningitis
The use of intraoperative monitoring during scoliosis surgery may replace the ✔Correct
Answer-Romberg test
,P14 is a far field, sub cortically generated response which probably reflects ✔Correct Answer-
Caudal medial lemniscal activity
Scalp-to-noncephalic reference ✔Correct Answer-Fz-C5S
A post incision baseline recording is used to ✔Correct Answer-Establish a standard for the
patient
The ulnar nerve is formed at spinal levels: ✔Correct Answer-C7-T1
Which of the following systolic blood pressures is most likely to attenuate the evoked potential?
✔Correct Answer-120 mm/Hg
With a sampling rate of 10 kHz the shortest sine wave resolved would be ✔Correct Answer-
0.2 msec
During a median nerve preoperative study, a patient has discomfort at the wrist. Stimulation
electrodes are 10 mm gold disk, stimulus intensity is 20 mA, and a stimulus duration is 100 usec.
Which of the following would most likely reduce the patient's discomfort while maintaining
adequate stimulation? ✔Correct Answer-Decrease number of repetitions
To dissect a vestibular schwannoma, which surgical approach usually sacrifices hearing?
✔Correct Answer-Translabyrinthine
Exteroceptors and proprioceptors include all of the following except: ✔Correct Answer-
Tectorial membrane
Penetration of the sterile surgical field occurs when ✔Correct Answer-The surgeon's arm
brushes against the recording equipment
On the SSEP, the electrode at _____ records a spinal cord response. ✔Correct Answer-T12
Which of the following cranial nerves is most appropriate to monitor during resection of a 4 cm
vestibular schwannoma? ✔Correct Answer-Facial
Blood supply to the spinal cord: ✔Correct Answer-Is by an anterior spinal artery and two
posterior spinal arteries
In recording electrocochleograms it is best to stimulate using ✔Correct Answer-Rarefaction of
condensation clicks
The section of the brainstem that is continuous with the spinal cord and includes the
decussation of the pyramids, is the ✔Correct Answer-Medulla oblongata
, The purpose of interbody cages is often to ✔Correct Answer-Restore lost disc height
The capacity to resolve amplitudes of 256 discrete steps would require an 8 bit A-to-D
converter. This can be represented by: ✔Correct Answer-2^8
An increase in stimulation intensity causes a linear increase of which of the following SSEP
components? ✔Correct Answer-P31
Spinal nerves are attached in series to the sides of the spinal cord and emerge through
✔Correct Answer-Intervertebral foramina
What is the maximum allowable leakage of evoked potential instrument chassis current?
✔Correct Answer-100 microamperes
If EEG is preserved during carotid endarterectomy surgery, it indicates ✔Correct Answer-
Adequate cortical perfusion and oxygenation
The two most important landmarks which are used to establish electrode placement in the 10-
20 system are the: ✔Correct Answer-The inion and nasion
To prevent ground loops, the patient should: ✔Correct Answer-Never be connected to more
than one ground
The response component at A can best be described as ✔Correct Answer-Near-field
Upper extremity SSEPs are transmitted through the: ✔Correct Answer-Cuneate nucleus
Diazepam (valium), Lorazepam (Ativan), and Clonazepam (Clonopin) are: ✔Correct Answer-
Benzodiazepines
Which of the following would most affect the ability to record BAEPs? ✔Correct Answer-
Coagulator
The common mode rejection ratio of amplifiers used for EP recording should be at least
✔Correct Answer-10,000:1
A contraindication for the use of transcranial magnetic stimulation is ✔Correct Answer-A
cardiac pacemaker in place
Which of the following is an example of an SSEP far-field subcortical potential? ✔Correct
Answer-N34
The branches of the facial nerve include all of the following except: ✔Correct Answer-
Thyroarytenoid
