|Values are valid only on day of printing.|
The assay involves a multicolor panel of antibodies for the following markers: CD45, CD19, and CD40. After the staining, RBCs are lysed. The remaining cells are washed and analyzed by flow cytometry on a BD FACSCanto instrument. The cell surface expression of CD40 in B cells (CD19+) is determined and expressed as being present or absent.(Unpublished Mayo method)
Monday through Friday
Do not send specimen after Thursday. Specimen must be received by 10 a.m. on Friday.