HLA â B7 may be positive in patients with Seronegative Spondyloarthropathy, cases of Juvenile Spondyloarthropathy and few cases of Undifferentiated Spondyloarthropathy who are HLA B-27 negative. Hence this is a useful disease marker.
Sample Daily by 9 am; Report Next day
No special preparation required
Reverse SSOP - Luminex
4 mL (3 mL min.) whole blood in 1 Lavender Top (EDTA) tube OR 6 mL (3 mL min.) whole blood in 1 Yellow Top (ACD) tube. Ship refrigerated. DO NOT FREEZE.