Assay

HLA B27

Key Words

HLA B27

Specimen Collection

3.4ml EDTA (Red lid). 1.3ml EDTA for paediatric (Red lid). Do not refrigerate & must be less than 24 hours old on receipt (this is due to white cell degradation).

Samples arriving on Friday or on a weekday that preceeds a Bank Holiday must arrive in the laboratory before 12pm or it will NOT be processed.

Turnaround time

3 working days. Analysis not performed at the weekend or on bank holidays.

Test indications

Suspected inflammatory disease, ankylosing spondylitis

Interferences

Haemolysis, clotted samples.

Reference Range

N/A

Minimum retesting interval

HLA B27 requests made where historic results exist on a patient are intervened.