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Results Line and Enquiries

0203 313 5353

HLA-B*27 Typing (B27)

Category Immunology
Test background
Clinical Indications

Although HLA B27 is present in approximately 10% of the normal population, it if found in 88-96% of patients with ankylosing spondylitis (AS). It is also associated with other rheumatological disorders, including Reiter's syndrome and is a strong diagnostic indicator for AS. A positive result indicates the presence of this antigen.

Reference range


Sample & container required 5-10 mL Whole Blood - EDTA ( 6 ml pink top)
Sample volume 5 mls
Turnaround time 14 days

Samples must be sent via first class post or courier

The laboratory is accredited for this test by the European Federation of Immunogenetics (EFI) however due to a change in platform it is currently awaiting UKAS accreditation under extension to scope.