4809002
Frage 1
Frage
When recording a TOF from the posterior tibial nerve at the ankle, which muscle would be best to record the response?
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tibalis anterior
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abductor hallucis
Frage 2
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The best muscles for L4-S1 pedicle screw stimulation would be the:
Antworten
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tibialis anterior and gastrocnemius
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vastus medialis and biceps femoris
Frage 3
Frage
The best muscle to record S-EMG for an S2-S4 instrumentation procedure is the:
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tibialis anterior
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anal sphincter
Frage 4
Frage
Which procedure may be done to reduce muscle spasticity?
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selective dorsal root rhizotomy
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mediolateral cordotomy
Frage 5
Frage
Which muscle is innervated by L4-S1 nerve roots?
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iliopsoas
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tibialis anterior
Frage 6
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Which muscle is innervated by the C5 nerve root?
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deltoid
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pronator teres
Frage 7
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Which muscle is innervated by the C7 nerve root?
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triceps brachii
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rectus abdominis
Frage 8
Frage
Which muscle is innervated by S2-S4 nerve roots?
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gastrocnemius
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anal sphincter
Frage 9
Frage
When recording a TOF from the median nerve at the wrist, which muscle would be best to record the response?
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abductor pollicus brevis
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flexor carpi radialis
Frage 10
Frage
If there is traction on neural tissues during a surgery, it will result in:
Antworten
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train activity in EMG
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delayed latency and a drop in amplitude for SSEP
Frage 11
Frage
What is the nerve innervation of the peroneus longus muscle?
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L2, L3, L4
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L5, S1 , S2
Frage 12
Frage
Stimulation of an L4 pedicle screw that has a lateral cortical bone breach will create a CMAP response in which muscle?
Antworten
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tibialis anterior
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abductor hallucis
Frage 13
Frage
What is resected during a rhizotomy procedure?
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dorsal rootlets
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sensory nerve
Frage 14
Frage
When is a monopolar stimulator preferred over a bipolar stimulator
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when localizing the general path of the nerve through a tumor
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when localizing the nerve
Frage 15
Frage
Which type of s-EMG activity correlates with nerve injury and postoperative deficit?
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burst activity
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neurotonic discharges
Frage 16
Frage
If you observe s-EMG activity in all channels, it is probably due to:
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nerve root irritation
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the patient waking up
Frage 17
Frage
The pedicle screw stimulation probe should be plugged into which output of the stimulator box?
Antworten
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anode
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cathode
Frage 18
Frage
A very high threshold for all pedicle screws could be because of a:
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muscle relaxant
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burst suppression
Frage 19
Frage
The release of a tethered cord is performed by the identifying and sectioning of the:
Antworten
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cauda equina
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filum terminale
Frage 20
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Stimulation of dorsal rootlets for dorsal root rhizotomy is done with a stimulation frequency of:
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50.0 Hz
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2.79 Hz
Frage 21
Frage
Luque rods would best be used for:
Antworten
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hip joint replacement
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posterior spinal fixation
Frage 22
Frage
Lower motor neurons exit the spinal cord through the:
Antworten
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dorsal nerve roots
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ventral nerve roots
Frage 23
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The C8 nerve root exits the spinal cord at which level?
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below the C8 vertebrae
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above the T1 vertebrae
Frage 24
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The tapered tip of the spinal cord is also known as the:
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conus medullaris
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cauda equina
Frage 25
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Many nerve roots that exit at the lower part of spinal cord are called:
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spina bifida
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cauda equine
Frage 26
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The ulnar nerve root entry level is:
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C8-T1
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C5-C8
Frage 27
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The median nerve root entry level is:
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C5-T1
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C5-C8
Frage 28
Frage
The posterior tibial nerve root entry level is:
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L4-S3
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L3-S4
Frage 29
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Tibial and common peroneal nerves are braches of the:
Antworten
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femoral nerve
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sciatic Nerve
Frage 30
Frage
The integrity of a peripheral nerve can be determined by:
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proximal CMAP responses
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distal CMAP responses
Frage 31
Frage
What is the most appropriate drug to use at induction when monitoring s-EMG?
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curare
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succinyl-choline
Frage 32
Frage
A train activity may be seen by:
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cold irrigation
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warm irrigation
Frage 33
Frage
A metal artifact is seen when:
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a metal instrument touches the nerve directly
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two dissimilar metals touch each other in the exposed spine
Frage 34
Frage
What type of corrective force to the spinal column is applied when sublaminar wires are used?
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fixation
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translation
Frage 35
Frage
The effects of a Harrington rod distraction on the spinal cord can be tested by a:
Antworten
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stagnara wake up test
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dorsal root stimulation
Frage 36
Frage
Which of the following is true for a possible nerve root injury when monitoring sEMG?
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high frequency train firing lasting for more than one minute
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few large bursts responses of complex morphology
Frage 37
Frage
The recommended band-pass filter for EMG monitoring is:
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10-5000
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10-30 to 16000
Frage 38
Frage
EMG monitoring for the S1 nerve root will include:
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sartorius
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gastrocnemius
Frage 39
Frage
A compression or sustained traction of a nerve will be present in s-EMG as:
Antworten
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train activity
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burst activity
Frage 40
Frage
The anterior horn cells are also called:
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beta motor neurons
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alpha motor neurons
Frage 41
Frage
There are _ cervical , _ thoracic, __ lumbar, and _ sacral spinal nerves in the human body.
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7, 12, 5,5
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8, 12, 5,5
Frage 42
Frage
Foot drop is caused by an injury to the:
Antworten
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peroneal nerve
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femoral nerve
Frage 43
Frage
If 3 out of 4 twitches are present during TOF monitoring, what percentage of muscles are paralyzed?
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25%
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75%
Frage 44
Frage
Wrist drop is caused by an injury to the:
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median nerve
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radial nerve
Frage 45
Frage
Radicular arteries can be compromised by:
Antworten
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derotation
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pedicle screw fixation
Frage 46
Frage
the pudendal nerve arises from:
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S2-S4
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S1-S2
Frage 47
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CMAP is a:
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nerve action potential
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myogenic response
Frage 48
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Bipolar nerve stimulation is MORE:
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sensitive
-
specific
Frage 49
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Monopolar nerve stimulation is LESS:
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sensitive
-
specific
Frage 50
Frage
A lumbar pedicle screw with a cortical bone breach will have a threshold of:
Antworten
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5 mA
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20 mA
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