NCLEX Immune System Questions Related

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The client newly diagnosed with multiple sclerosis (MS) states, 'I don't understand how I got multiple sclerosis. Is it genetic?' On which statement should the nurse base the response?

  • A. Genetics may play a role in susceptibility to MS, but the disease may be caused by a virus.
  • B. There is no evidence suggesting there is any chromosomal involvement in developing MS.
  • C. Multiple sclerosis is caused by a recessive gene, so both parents had to have the gene for the client to get MS.
  • D. Multiple sclerosis is caused by an autosomal dominant gene on the Y chromosome, so only fathers can pass it on.
Correct Answer: A

Rationale: MS has a genetic susceptibility component (e.g., HLA genes), but environmental factors like viral infections may trigger it. There is chromosomal involvement, MS is not purely recessive or dominant, and it is not Y-linked.