Ankylosing spondylitis Quiz: Ace Your Exams

Get ready to dominate your medical and nursing exams by using our dynamic quizzes to elevate your knowledge and increase your confidence. Whether you're gearing up for the USMLE®, COMLEX®, or your next in-class assessment, Osmosis quizzes tackle key topics in pathology, diagnostics, and treatment approaches. By honing in on clinical readiness and decision-making, we make sure the knowledge you gain empowers you both in the classroom and in real-world practice. Jump in and supercharge your exam prep!

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A 30-year-old man presents to the clinic with a 1-year history of low back pain that is worse at night and improves with exercise. Family history is significant for an inflammatory spinal condition in his father. Laboratory tests reveal HLA-B27 positivity, ESR of 55 mm/hr, and negative ANA and RF. On physical examination, there is tenderness over the sacroiliac joints bilaterally and at the right Achilles tendon insertion site. No joint swelling or rashes are present. Which of the following additional findings would be most suggestive of the underlying condition?

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Hyperlordosis of the lumbar spine

Increased range of motion of the spine

Increased lateral curvature and rotation of the spine

Spinal stiffness

Hyperflexion of the cervical spine