BANK WITH ACTUAL QUESTIONS AND
VERIFIED ANSWERS WITH RATIONALES
What new imaging techniques help in the placement of
ECoG electrodes?
a. Ultrasound and standard X-Rays
b. Contrast MRI and CT scans
c. Digital photographs and MEG
d. Fusion of functional SPECT and PET scans and
structural MRI - ANSWER-d. Fusion of functional SPECT
and PET scans and structural MRI
,How does ECoG activity differ from scalp recorded EEG?
(select all that apply)
-More sharply contoured morphology
-Lower amplitude when recording from the cortex directly
-Higher amplitude
-Onset decrement or attenuation usually not seen on scalp
recordings because it is so low amplitude it is not recorded
through the scalp and skull - ANSWER--More sharply
contoured morphology
-Higher amplitude
-Onset decrement or attenuation usually not seen on scalp
recordings because it is so low amplitude it is not recorded
through the scalp and skull
,During surgery for an aortic arch dissection, the SSEP's
from the lower extremities remain stable, EEG shows no
change but there is a gradual loss of the SSEP and Tc-
MEP from the left arm. What is the most likely etiology?
a. Left side spinal cord injury
b. Right cortical injury
c. Right brainstem injury
d. Occlusion of the left subclavian artery - ANSWER-d.
Occlusion of the left subclavian artery
Which of the following modalities is LEAST useful to
monitor during surgery for a vertebral artery aneurysm?
a. Lower extremity SSEP
b. Brainstem auditory evoked potential
, c. Surface EEG
d. Upper extremity SSEP - ANSWER-c. Surface EEG
In the past many brainstem lesions were considered
inoperable but with modern microsurgical techniques
combined with neurophysiological mapping, many lesions
in this area are now amenable to surgical intervention.
True or False? - ANSWER-True
How are after discharges stopped?
a. IV valium
b. General anesthesia
c. IV antiepileptic drugs