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Questions and Answers
What percentage of Caucasians with ankylosing spondylitis are positive for LA-B27 alleles?
What percentage of Caucasians with ankylosing spondylitis are positive for LA-B27 alleles?
- 50%
- 7%
- 95% (correct)
- 100%
Study Notes
Ankylosing Spondylitis
- A chronic inflammatory arthritis that affects the spine and sacroiliac joints
- Strongly associated with the HLA-B27 allele in Caucasians:
- 95% of ankylosing spondylitis patients are positive for HLA-B27 alleles
- Compared to 7% of healthy individuals
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Description
This quiz covers the basics of Ankylosing Spondylitis, a chronic inflammatory arthritis that affects the spine and sacroiliac joints, and its strong association with the HLA-B27 allele.
