Collect lavender EDTA or green top sodium heparin 1.0 mL minimum, send whole blood room temp.
Room temp: 7 days, Refrigerated: 5 days, Frozen: Unacceptable
1-2 days, set up Monday-Saturday
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.