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Motor Neuron Disease and Neuropathies
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If a sensory study shows prolonged latencies but a motor study on the same peripheral nerve is normal, what does this typically indicate?
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C. Moderate axonal injury
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D. Moderate myelin injury
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In a needle EMG study, why is it important to study insertional activity?
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A. To find evidence of axonal injury
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B. To find evidence of myopathy
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C. To study the neuromuscular junction
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D. To study the nociceptors
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A. To find evidence of axonal injury
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What is the difference between H-reflex testing and F-wave testing?
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A. Only F-wave testing requires normal motor neuron and motor axon function
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B. Only H-reflex testing is useful for detecting radiculopathy
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C. Only F-wave testing requires an intact nerve plexus
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D. Only H-reflex testing requires normal sensory axons
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D. Only H-reflex testing requires normal sensory axons
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Death from amyotrophic lateral sclerosis (ALS) from the time of diagnosis occurs on average in:
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A variant of sporadic ALS that features spasticity with only slight weakness of the extremities due to dysfunction of the corticospinal tract without lower motor neuron involvement is:
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A. Primary lateral sclerosis
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B. Progressive bulbar palsy
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D. Progressive muscular atrophy
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A. Primary lateral sclerosis
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Which of the following impairments is relatively rare in people with ALS?
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C. Weakness/paralysis of spinal muscles
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Questions 7 and 8 refer to the following scenario:
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Mary Thomas is a 40-year-old female with familial ALS. She reports she has always been active prior to her ...