Exam (elaborations)
ECOG_EP for CLTM.
Exam of 4 pages for the course ACO CORB. at ACO CORB. (ECOG_EP for CLTM.)
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ECOG/EP for CLTMnearfield, post-synaptic activity in cervical spinal cord - CORRECT
ANSWER-N13
far-field, caudal medial/leminsicous (AEP) - CORRECT ANSWER-P14
far-field, post-synaptic activity from several sites in the brain stem and thalamus -
CORRECT ANSWER-N18
near-field, somatosensory cortex potential - CORRECT ANSWER-N20
median generator sites - CORRECT ANSWER-N13
P14
N18
N20
electrode impedance with ECOG - CORRECT ANSWER-higher- placement is
unstable
reference electrode in ecog - CORRECT ANSWER-placed away from active
electrodes in the subgleal space
LFF in ecog - CORRECT ANSWER-can be raised to 5-10 Hz
primary interest is spikes- not slow waves
responses required in cortical SSEP ecog - CORRECT ANSWER-response is
much larger than scalp-recorded
less than 100 average responses are needed
OR troubleshooting - CORRECT ANSWER--ask surgeon to stop electrocautery
temporarily to document the artiface
-60 Hz notch is prohibited
-primary non-electrical issue is effect of anesthesia
-other issues include vital signs and positioning
positioning during ecog - CORRECT ANSWER-avoid hyperextension of joints
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