Ankylosing spondylitis laboratory findings: Difference between revisions

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Revision as of 17:56, 26 October 2012

Editor-In-Chief: C. Michael Gibson, M.S., M.D. [1]

There is no direct test to diagnose ankylosing spondylitis. There is increase in C-reactive protein (CRP) and Erythrocyte sedimentation rate (ESR).

Increase in

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 ==Overview==
-There is no direct test to diagnose AS. A clinical examination and [[X-ray]] studies of the spine, which show characteristic spinal changes and [[Sacroiliac joint|sacroiliitis]], are the major diagnostic tools. A drawback of X-ray diagnosis is that signs and symptoms of AS have usually been established as long as 8-10 years prior to X-ray evident changes occurring on a plain film X-ray, which means a delay of as long as 10 years before adequate therapies can be introduced. An option for more accurate (and much earlier) diagnosis are [[Computed tomography|tomography]] and [[magnetic resonance imaging]] of the sacroiliac joints. The [[Schober's test]] is a useful clinical measure of flexion of the lumbar spine performed during examination.<ref>{{cite journal | author = Thomas E, Silman AJ, Papageorgiou AC, Macfarlane GJ, Croft PR. | title = Association between measures of spinal mobility and low back pain. An analysis of new attenders in primary care. | journal = Spine | volume = 23 | issue = 2 | pages = 343-7 | year = 1998 | id = PMID 9507623}}</ref>
+There is no direct test to diagnose ankylosing spondylitis. There is increase in [[C-Reactive protein|C-reactive protein]] (CRP) and [[Erythrocyte sedimentation rate]] (ESR).
 ==Laboratory Findings==
 [[Image:Ankylosing process.jpg|left|thumb|256px|The ankylosis process.]]