Ordering Information

Epic Orderable Name: CD19 + Mature Lymphocytes

Epic Test Id: LAB1188

Testing Includes Percent of CD19+ Lymphocytes

Testing Schedule Monday thru Saturday: 8AM

Turnaround Time 2 Days

Order Priorities Routine   Stat

LOINC 8116-6 

Methodology Immunophenotyping

Ordering Restrictions STOP; DON'T COLLECT sample between Sat 7AM and Sun 7AM (Mon 7AM if MON is a holiday). Samples will be cancelled because sample will be too old at time of testing, compromising sample integrity. Must be received within 30.0 hours of collection. Do not refrigerate. Transport at room temperature only.

Specimen Requirements

Specimen STOP; DON'T COLLECT sample between Sat 7AM and Sun 7AM (Mon 7AM if MON is a holiday). Samples will be cancelled because sample will be too old at time of testing, compromising sample integrity. Must be received within 30.0 hours of collection. Do not refrigerate. Transport at room temperature only.

Collection Container Lavender Top Tube

Collection Volume 3.0 mL

Minimum Volume 3.0 mL

Specimen Stability Testing needs to be completed within 30.0 hours of collection. Never refrigerate. Store at room temperature only.

Send Specimen To JHH Flow Cytometry Laboratory (WGB 2300)/410-614-2968

Specimen Types Blood

Reference Ranges & Interpretation

Reference Range

0-3 mo. 6-32%

3-6 mo. 11-41%

6-12 mo. 14-37%

1-2 yr. 16-35%

2-6 yr. 14-33%

6-12 yr. 13-27%

12-18 yr. 6-23%

>18 yrs. 6-19%

For Lab Staff

Performing Workstation JLAB FLOW CYTOMETRY

Minimum Aliquot Volume 1.0 mL

Processing (in Performing Lab) Deliver Room Temperature Whole Blood to Flow Cytometry Lab (Weinberg 2306). Tube Station 141

Comments Test includes Percent of CD19+ Lymphocytes

PHLEBOTOMY STATUS: Routine Rounds

LABORATORY NOTES: Specimen will be canceled if refrigerated or not processed within 24 hours of collection. Call Flow Cytometry lab @ 410-614-2968 for additional instructions.

Minimum Aliquot Volume is 1.0 mL.

JHH SPECIAL HANDLING: Transport Whole Blood at Room Temperature to T Cell Subsets laboratory (Weinberg 2306)or if using the pneumatic tube system,

Tube Station 141,within 24 hours of collection.

PROCESSING INSTRUCTIONS FOR OUTREACH SITES: Deliver Whole Blood at Room Temperature to Flow Cytometry lab (Weinberg 2306).