IONM for CLTM boards (ASET questions)
1st change seen in scalp EEG during occlusion of the cartotid artery - CORRECT
ANSWER-ipsilateral decreased amplitude in fast activity
what can help eliminate problems with distortion of anatomy by pathological
processes and the difficulty of monitoring visually for body movement -
CORRECT ANSWER-multi-channel EMG recordigns
True or False: a previous history of stroke increases the risk for aneurysm -
CORRECT ANSWER-False
increased risk for aneurysms - CORRECT ANSWER-arterial occlusion
venous occlusion
.....
which modality is least useful to monitor during middle cerebral artery aneurysm -
CORRECT ANSWER-BAER
useful modalities during monitoring of MCA aneurysm - CORRECT
ANSWER-cortical EEG
surface EEG
.....
EMG recording parameters for DCS - CORRECT ANSWER-Free run mode
Free Run mode EMG recording parameter for DCS - CORRECT
ANSWER-LFF=30
HFF= 1000
display gain= 200uV
1 second per division
why are ADs not desired during speech lateralization - CORRECT
ANSWER-pauses in speech could be caused by a seizure rather than the
negative function phenomenon which is desired to help localize speech function
, structural functional anatomy may be altered by - CORRECT ANSWER-plasticity
pressure
current
previous lesions
limitation that can arise when using "functional neuronavigation" in the period
after removal of brain tissue - CORRECT ANSWER-shifting of brain contents
within the cranial vault rendering the stereotactic MRI guidance systems less
exacting in their localizing abilities
incidence of epilepsy - CORRECT ANSWER-6/100,000
highest incidence in youngest age groups
True or False: Patient must always be anesthetized during language mapping -
CORRECT ANSWER-true
possible results of stimulation of language cortex - CORRECT ANSWER-1)
speech arrest (+)
2) naming error (-)
3) accelerated speech
which modality is least useful to monitor during surgery for vertebral artery
aneurysm - CORRECT ANSWER-surface EEG
modalities useful for monitoring during surgery for vertebral artery aneurysm -
CORRECT ANSWER-upper extremity SSEP
lower extremity SSEP
.........
CN for EMG monitoring of massetter muscle - CORRECT ANSWER-CN
CN for EMG monitoring sternocleidomastoid muscle - CORRECT ANSWER-CN
CN for EMG monitoring posterior pharyngeal muscles - CORRECT ANSWER-CN
CN for EMG monitoring frontalis, orbicularis oris/oculi, mentalis - CORRECT
ANSWER-CN
1st change seen in scalp EEG during occlusion of the cartotid artery - CORRECT
ANSWER-ipsilateral decreased amplitude in fast activity
what can help eliminate problems with distortion of anatomy by pathological
processes and the difficulty of monitoring visually for body movement -
CORRECT ANSWER-multi-channel EMG recordigns
True or False: a previous history of stroke increases the risk for aneurysm -
CORRECT ANSWER-False
increased risk for aneurysms - CORRECT ANSWER-arterial occlusion
venous occlusion
.....
which modality is least useful to monitor during middle cerebral artery aneurysm -
CORRECT ANSWER-BAER
useful modalities during monitoring of MCA aneurysm - CORRECT
ANSWER-cortical EEG
surface EEG
.....
EMG recording parameters for DCS - CORRECT ANSWER-Free run mode
Free Run mode EMG recording parameter for DCS - CORRECT
ANSWER-LFF=30
HFF= 1000
display gain= 200uV
1 second per division
why are ADs not desired during speech lateralization - CORRECT
ANSWER-pauses in speech could be caused by a seizure rather than the
negative function phenomenon which is desired to help localize speech function
, structural functional anatomy may be altered by - CORRECT ANSWER-plasticity
pressure
current
previous lesions
limitation that can arise when using "functional neuronavigation" in the period
after removal of brain tissue - CORRECT ANSWER-shifting of brain contents
within the cranial vault rendering the stereotactic MRI guidance systems less
exacting in their localizing abilities
incidence of epilepsy - CORRECT ANSWER-6/100,000
highest incidence in youngest age groups
True or False: Patient must always be anesthetized during language mapping -
CORRECT ANSWER-true
possible results of stimulation of language cortex - CORRECT ANSWER-1)
speech arrest (+)
2) naming error (-)
3) accelerated speech
which modality is least useful to monitor during surgery for vertebral artery
aneurysm - CORRECT ANSWER-surface EEG
modalities useful for monitoring during surgery for vertebral artery aneurysm -
CORRECT ANSWER-upper extremity SSEP
lower extremity SSEP
.........
CN for EMG monitoring of massetter muscle - CORRECT ANSWER-CN
CN for EMG monitoring sternocleidomastoid muscle - CORRECT ANSWER-CN
CN for EMG monitoring posterior pharyngeal muscles - CORRECT ANSWER-CN
CN for EMG monitoring frontalis, orbicularis oris/oculi, mentalis - CORRECT
ANSWER-CN
