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