Specimen Requirements
Title
HLA-B27 Antigen
Specimen Requirement
Collect lavender EDTA or green top sodium heparin 1.0 mL minimum, send whole blood room temp.
Methodology
Flow Cytometry
Stability
Room temp: 7 days, Refrigerated: 5 days, Frozen: Unacceptable
Reference Range
By Report*
Turnaround
1-2 days, set up Monday-Saturday
Clinical Use
Evaluate spondylarthritis and other disorders associated with this antigen. Over 90% of ankylosing spondylitis (AS) patients, 75% of Reiter syndrome patients and 80% of patients with reactive arthritis (ReA) are HLA B27-positive.
Test Code
B27