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 43-year-old man presents to the clinic for evaluation of years of chronic low back pain that improves with exercise and worsens with rest. He reports morning stiffness in the lower back that lasts for over two hours. On physical examination, the patient has decreased chest expansion and limited spinal mobility. Laboratory findings include an elevated ESR and C-reactive protein. X-ray of the spine reveals a “bamboo spine.” Which of the following additional X-ray findings would be expected with this patient's likely underlying condition?

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Displacement of the intervertebral discs

Enlargement of the vertebral bodies

Widening of the sacroiliac joints

Fusion of the sacroiliac joints

Widening of the intervertebral foramina