AAET NCV/EMG FINAL EXAM TEST LATEST UPDATE WITH
100% SOLVED -GRADED A+ VERIFIED UPDATE
A decrease in amplitude across a proximal nerve segment compared to
the distal amplitude? - correct answer- Amplitude Drop
A demyelinating polyneuropathy that is an autoimmune disorder, 20% of
patients have respiratory symptoms and prolonged F Waves in NCS;
generally an acute process. This describes? - correct answer- AIDP -
Acute Inflammatory Demyelinating Polyneuropathy
A federal agency charged with the mission to assure a safe and healthy
workplace by setting and enforcing standards. They provide training,
education and assistance to achieve this. - correct answer- OSHA
(Occupational Safety and Health Administration)
A measurement of time in meters per second between two points. It is
calculated from the fastest fibers as the difference in distance divided by
difference in time. - correct answer- Conduction Velocity
A nerve action potential depolarizes the presynaptic junction, voltage-
gated calcium channels are activated, allowing an influx of calcium. The
infusion of calcium leads to release of release of ACH from the
presynaptic terminal. ACH then diffuses across the synaptic cleft, and
binds to ACH receptors on the postsynaptic muscle membrane. This
results in local depolarization of the endplate potential. This describes?
- correct answer- Physiology of the neuromuscular junction.
,A nerve root lesion distal to the dorsal root ganglia, best describes? -
correct answer- Postganglionic
A nerve root lesion proximal to the dorsal root ganglia, best describes?
- correct answer- Preganglionic
A normal phenomenon caused by more synchronous firing of muscle
fiber action potentials immediately following brief intense exercise. -
correct answer- Pseudofacilitation
A recording from any motor nerve, activated by antidromic stimulation
that travels centrally to the spinal cord through interneurons and
anterior horn cells, then orthodromically from the spinal cord to the
muscle. - correct answer- F Wave (origin)
A response occasionally seen in Repetitive Nerve Stimulation in which an
increase of amplitude following identical stimulations. This describes? -
correct answer- Post activation facilitation
A response seen in Repetitive Nerve Stimulation in which, after exercise,
a transient potentiation is followed by decreased excitability of the
neuromuscular junction in 2 to 4 minutes after exercise. - correct
answer- Post activation exhaustion (posttetanic exhaustion)
,A structural subunit and that contains actin and myosin filaments? -
correct answer- Sarcomere
A submaximal stimulus that arises from large Ia afferents of the muscle
activates a monosynaptic reflex arc. These afferent impulses travel up
the sensory fibers and enter the dorsal horn of the spinal cord. After
entering the dorsal horn of the spinal cord, the Ia afferents synapse with
the alpha motor neurons that activate that muscle and a CMAP is
produced completing the reflex arc. This describes? - correct answer-
H Reflex (circuitry)
After performing the initial repetitive nerve study a decrement of
greater than 10% is noted. How should you proceed with your repetitive
nerve study? - correct answer- Have the patient perform maximal
voluntary exercise for 10 seconds. Then immediately repeat 3Hz
repetitive nerve stimulation postexercise to demonstrate postexercise
facilitation and repair of the decrement.
Also called neuralgic amyotrophy or brachial plexitis. The first symptom
is usually pain, often severe with muscle atrophy to follow. When the
pain subsides, weakness becomes apparent. Isolated nerves may be
affected or all of the plexus may be involved. Most cases are unilateral.
This describes? - correct answer- Parsonage Turner Syndrome
An anastomosis of motor fibers between the Median and Ulnar nerve at
the level of the palm. - correct answer- Riche Cannieu Anastomosis
, At what age do sensory NCV reach mean adult values? - correct
answer- 5 years of age
Axonal degeneration that progresses from the place of injury along the
axon (i.e. distal to a lesion) - correct answer- Wallerian Degeneration
Baseline and immediate postexercise or posttetanic 2 to 5 Hz nerve
stimulation followed by stimulation at regular intervals of 30 s to 1 min,
and continuing to 5 min. This describes? - correct answer-
Stimulation Parameters for Repetitive Nerve Stimulation:
Between the epicondyle and olecranon, a place where the ulnar nerve
can become compressed. This describes? - correct answer- Condylar
Groove
Botulism blocks the presynaptic release of what neurotransmitter? -
correct answer- Acetylcholine (ACH)
Characteristic findings of wasting and weakness of distal limb muscles
also usually associated with distal sensory loss, moderate foot
deformities, and decreased or absent deep tendon reflexes describes the
hereditary disorder called? - correct answer- Charcot Marie Tooth
(CMT)
Check that ground and recording electrodes are functioning properly,
make sure stimulator is working, check if cables are crossed or touching,
100% SOLVED -GRADED A+ VERIFIED UPDATE
A decrease in amplitude across a proximal nerve segment compared to
the distal amplitude? - correct answer- Amplitude Drop
A demyelinating polyneuropathy that is an autoimmune disorder, 20% of
patients have respiratory symptoms and prolonged F Waves in NCS;
generally an acute process. This describes? - correct answer- AIDP -
Acute Inflammatory Demyelinating Polyneuropathy
A federal agency charged with the mission to assure a safe and healthy
workplace by setting and enforcing standards. They provide training,
education and assistance to achieve this. - correct answer- OSHA
(Occupational Safety and Health Administration)
A measurement of time in meters per second between two points. It is
calculated from the fastest fibers as the difference in distance divided by
difference in time. - correct answer- Conduction Velocity
A nerve action potential depolarizes the presynaptic junction, voltage-
gated calcium channels are activated, allowing an influx of calcium. The
infusion of calcium leads to release of release of ACH from the
presynaptic terminal. ACH then diffuses across the synaptic cleft, and
binds to ACH receptors on the postsynaptic muscle membrane. This
results in local depolarization of the endplate potential. This describes?
- correct answer- Physiology of the neuromuscular junction.
,A nerve root lesion distal to the dorsal root ganglia, best describes? -
correct answer- Postganglionic
A nerve root lesion proximal to the dorsal root ganglia, best describes?
- correct answer- Preganglionic
A normal phenomenon caused by more synchronous firing of muscle
fiber action potentials immediately following brief intense exercise. -
correct answer- Pseudofacilitation
A recording from any motor nerve, activated by antidromic stimulation
that travels centrally to the spinal cord through interneurons and
anterior horn cells, then orthodromically from the spinal cord to the
muscle. - correct answer- F Wave (origin)
A response occasionally seen in Repetitive Nerve Stimulation in which an
increase of amplitude following identical stimulations. This describes? -
correct answer- Post activation facilitation
A response seen in Repetitive Nerve Stimulation in which, after exercise,
a transient potentiation is followed by decreased excitability of the
neuromuscular junction in 2 to 4 minutes after exercise. - correct
answer- Post activation exhaustion (posttetanic exhaustion)
,A structural subunit and that contains actin and myosin filaments? -
correct answer- Sarcomere
A submaximal stimulus that arises from large Ia afferents of the muscle
activates a monosynaptic reflex arc. These afferent impulses travel up
the sensory fibers and enter the dorsal horn of the spinal cord. After
entering the dorsal horn of the spinal cord, the Ia afferents synapse with
the alpha motor neurons that activate that muscle and a CMAP is
produced completing the reflex arc. This describes? - correct answer-
H Reflex (circuitry)
After performing the initial repetitive nerve study a decrement of
greater than 10% is noted. How should you proceed with your repetitive
nerve study? - correct answer- Have the patient perform maximal
voluntary exercise for 10 seconds. Then immediately repeat 3Hz
repetitive nerve stimulation postexercise to demonstrate postexercise
facilitation and repair of the decrement.
Also called neuralgic amyotrophy or brachial plexitis. The first symptom
is usually pain, often severe with muscle atrophy to follow. When the
pain subsides, weakness becomes apparent. Isolated nerves may be
affected or all of the plexus may be involved. Most cases are unilateral.
This describes? - correct answer- Parsonage Turner Syndrome
An anastomosis of motor fibers between the Median and Ulnar nerve at
the level of the palm. - correct answer- Riche Cannieu Anastomosis
, At what age do sensory NCV reach mean adult values? - correct
answer- 5 years of age
Axonal degeneration that progresses from the place of injury along the
axon (i.e. distal to a lesion) - correct answer- Wallerian Degeneration
Baseline and immediate postexercise or posttetanic 2 to 5 Hz nerve
stimulation followed by stimulation at regular intervals of 30 s to 1 min,
and continuing to 5 min. This describes? - correct answer-
Stimulation Parameters for Repetitive Nerve Stimulation:
Between the epicondyle and olecranon, a place where the ulnar nerve
can become compressed. This describes? - correct answer- Condylar
Groove
Botulism blocks the presynaptic release of what neurotransmitter? -
correct answer- Acetylcholine (ACH)
Characteristic findings of wasting and weakness of distal limb muscles
also usually associated with distal sensory loss, moderate foot
deformities, and decreased or absent deep tendon reflexes describes the
hereditary disorder called? - correct answer- Charcot Marie Tooth
(CMT)
Check that ground and recording electrodes are functioning properly,
make sure stimulator is working, check if cables are crossed or touching,
