Draw one green top tube (Sodium or Lithium Heparin) or 1 lavender top tube (EDTA).
Do NOT centrifuge! Keep at room temperature (18-22°C).
Preferred volume: 4 mL blood
Minimum volume: 1 mL blood
Frozen, clotted, hemolyzed or centrifuged specimens. Anticoagulants other than heparin. Specimens >24 hrs old.
Maintain and transport specimens at room temperature (18-22°C).
Ship specimens Priority Overnight via Fed Ex in container sufficiently insulated to avoid temperature extremes (<10°C and >37°C).
24 hours at room temperature (18-22°C)
Samples must arrive within 24 hours of draw and are accepted Monday through noon on Friday.
Immunology Lab - Phenotyping Assays
B cell activating factor;B cell marker
MEMB, XBCP, CD19M, CD20M, ICOS
456 - 1705 Mean Fluorescence Intensity (MFI)
Mutations of the gene encoding the BAFF receptor are associated with common variable immunodeficiency (CVID).
Analysis of the expression of BAFF-R on B cells assists with the evaluation of CVID patients.
88185, 88184 x 2