Multiple Sclerosis questions with correct answers

Multiple Sclerosis (MS) CORRECT ANSWER-Disease of the CNS characterized by the occurrence of random patches of inflammation with demyelination called plaques'/lesions. Occurrence age 15-45 yrs. Includes exacerbations and remissions. Relapsing-Remitting, Secondary Progressive, Primary Progressive, Progressive-Relapsing CORRECT ANSWER-List the 4 variations of Multiple Sclerosis: Relapse-Remitting CORRECT ANSWER-Acute episodes of worsening neurological function followed by partial or complete recovery w/ no disease progression b/w relapses. -85% of patients begin with this variant. Secondary Progressive CORRECT ANSWER-Initial period of relapses and remissions followed by progression of the disease w/ or w/o exacerbations. -90% of pts. with relapsing-remitting will later develop this variant unless treated. Primary Progressive CORRECT ANSWER-Slow but steady worsening of disease from onset w/ NO remissions or relapses. Requires documented worsening over one year. -10% of patients. Progressive-Relapsing CORRECT ANSWER-Stea