Test Code LAB93760 CD 19 Count
Reporting Title
CD 19 Count
Performing Laboratory
OhioHealth Laboratory Services-RMH Special Testing
Specimen Collection
Draw blood in a lavender-top (EDTA) tube(s). (Grossly hemolyzed specimen is not acceptable.)
Mix gently by inverting 8 times.
Do not centrifuge.
Forward unprocessed whole blood promptly at ambient temperature only.
Reference Values
% CD19 (B-cells): 6-22%
Absolute CD19: 89-541 cells/µL
Day(s) Performed
Monday through Friday
Saturday; if received before 10 a.m.
Specimen Transport and Storage
Sample is stable at room temperature for 48 hours. Do not refrigerate or freeze.
Specimen Transport Temperature
Ambient OK/Refrigerate NO/Frozen NO
Methodology
Flow Cytometry
Note: This assay is not for diagnosing lymphocytic malignancies. Useful for monitoring CD19 counts.
CPT Coding
86355 - B cells; total count