|Mnemonic: ||[UNLIST LAB]|
|Name: ||B-Cell Memory and Naive Panel|
|Specimen: ||5 mL plasma from a Green heparin tube. Do NOT use gel barrier tubes. |
5 mL EDTA is also acceptable.
Send whole blood in the original container.
It would be best to collect the samples in the AM to make the noon courier. This is a time sensitive assay.
Clotted, refrigerated or frozen samples are unacceptable.
|Minimum Spec: ||3 mL|
|Transport Temp: ||Store and transport sample at Room Temperature.|
|Spec Stability: ||Stable 2 days ambient.|
|Ref Lab/Code: ||ARUP 2008901|
| Method: ||Flow Cytometry|
|Note: ||This test measures B-cells (CD19+), total memory B-cells (CD19+ CD27+), class switched memory B-cells (CD19+ CD27+ IgD-), non-switched/marginal zone memory B-cells (CD19+ CD27+ IgD+), and naive B-cells (CD19+ CD27-IgD+). This test is indicated for patients with suspected immune deficiencies, especially Common Variable Immune Deficiency (CVID), and to assess reconstitution of B-cell subsets after bone marrow or stem cell transplant.|
|Processing Info: ||Specimens must be analyzed within 48 hours of collection. |
Storage/Transport Temperature: Room temperature; Refrigerated is also acceptable.