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Multiple Sclerosis Case

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

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

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

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

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

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

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

A. Environment, viruses, and genetics

B. Ethnicity, diet, and antibiotic resistance

C. Exercise, blood pressure, and sunlight

D. Emotional health, diet, and smoking

A. Environment, viruses, and genetics

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

A. Inflammation and destruction of the myelin sheath

B. Axonal degeneration

C. Formation of amyloid plaques

D. Both A and B

E. Both A and C

D. Both A and B

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

A. 15%

B. 60%

C. 85%

D. 95%

C. 85%

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:

A. 6 hours duration and 10 days separation

B. 12 hours duration and 20 days separation

C. 24 hours duration and 30 days separation

D. 48 hours duration and 60 days separation

C. 24 hours duration and 30 days separation

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

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

B. Female gender

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