HLA-B27 antigen : Normal Values & Results (Human leukocyte antigen B27)

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You are here : AllRefer.com > Health > Tests & Exams > HLA-B27 antigen : Normal Values & Results

HLA-B27 antigen

Alternate Names : Human leukocyte antigen B27

Normal Values

A normal (negative) result means HLA-B27 is absent.

However, HLA-B27 is found in 5 - 7% of Caucasians who do not have an autoimmune disorder.

What do Abnormal Results Mean?

A positive test means HLA-B27 is present. It suggests a greater-than-average risk for developing:

Ankylosing spondylitis
Reiter syndrome
Sacroiliitis (inflammation of the sacroiliac joint)

In the presence of suggestive clinical findings, a positive HLA-B27 test may confirm the diagnosis.

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HLA-B27 antigen : Definition
HLA-B27 antigen : Why is the Test Performed?
HLA-B27 antigen : How is the Test Performed?
HLA-B27 antigen : How to Prepare for the Test?
HLA-B27 antigen : How will the Test Feel?
HLA-B27 antigen : Risks
HLA-B27 antigen : Normal Values
HLA-B27 antigen : What do Abnormal Results Mean?
HLA-B27 antigen : Pictures & Images
Blood test

Review Date : 5/21/2009
Reviewed By : David C. Dugdale, III, MD, Professor of Medicine, Division of General Medicine, Department of Medicine, University of Washington School of Medicine. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.

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