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Multiple Sclerosis Case

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Which of the following questions is true regarding the epidemiology of MS?

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A. There is an increasing prevalence of MS with increasing distance away from the equator

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B. There is an increasing prevalence of MS with decreasing distance away from the equator

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C. The prevalence of MS is equally distributed around the world

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D. The incidence of MS is highest in individuals of African and Asian descent

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A. There is an increasing prevalence of MS with increasing distance away from the equator

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The clear cause of MS is unknown, but which of the following factors are believed to be most important for the development of MS?

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A. Environment, viruses, and genetics

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B. Ethnicity, diet, and antibiotic resistance

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C. Exercise, blood pressure, and sunlight

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D. Emotional health, diet, and smoking

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A. Environment, viruses, and genetics

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What pathophysiological process(es) in the CNS is/are involved in MS?

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A. Inflammation and destruction of the myelin sheath

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B. Axonal degeneration

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C. Formation of amyloid plaques

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D. Both A and B

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E. Both A and C

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D. Both A and B

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Approximately what percent of patients with MS are diagnosed with relapsing-remitting MS?

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A. 15%

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B. 60%

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C. 85%

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D. 95%

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C. 85%

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For an episode of neurological symptoms to be called an MS relapse or exacerbation, the duration of symptoms and the time between the first and second episodes must be:

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A. 6 hours duration and 10 days separation

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B. 12 hours duration and 20 days separation

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C. 24 hours duration and 30 days separation

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D. 48 hours duration and 60 days separation

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C. 24 hours duration and 30 days separation

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Which of the following factors is an indicator of a poor prognosis?

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A. Initial motor symptoms (tremor, ataxia, paralysis)

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B. Female gender

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