CD19 B Cell Monitoring, Percent and Absolute Count


Sunquest Code:CD19B  
Epic Code:LAB6420Epic Name:CD19 B Cell Count
Synonyms:CD19 Count; CD19 for Rituxin Monitoring; B Cells
Methodology:Flow cytometry
CPT Code:----------CPTCODES HERE----------
Turnaround Time:Results are reported within 1-2 days.
Special Instructions:Provide diagnosis, age, collection date and time. Samples must be received and tested within 24 hours of collection. Testing is performed Mon-Fri, 8 am - 5 pm and on specimens arriving in the Flow Cytometry lab on Saturday before noon. No testing is performed on Sundays or holidays. Samples are received in the Core lab when Flow Cytometry lab is not staffed. Contact the IFC laboratory at 612-273-5248 for further information.


Collection Instructions

Specimen:Blood
Optimal Volume:4 mL
Minimum\Peds Volume:0.5 mL
Collection Instructions:Samples must be maintained at room temperature. Samples must be less than 24 hours old at the time of testing and are received in the Flow Cytometry laboratory Mon-Fri and until noon on Sat. Samples are received in the Core lab when the Flow Cytometry lab is not staffed. Specimens will be tested the next day of lab operation if less than 24 hours old. Samples are not tested on holidays. Contact the IFC laboratory at 612-273-5248 for further information.
Causes for Rejection:Blood with low WBC and/or percentage of lymphocytes, clotted specimen, specimen received greater than 24 hours after collection, specimen collected in non-EDTA anticoagulant, refrigerated specimens.


Processing and Shipping

Specimen Processing:Do not centrifuge. Store at room temperature. Send to Flow Cytometry lab within 24 hours of collection, Mon-Fri, 0800-1600 and before noon on Saturdays.
Shipping Instructions:Ship at room temperature. Must arrive within 24 hours of collection. Do not send on weekends or the day before a holiday.
Test Performed at or Referral Lab Immunophenotyping and Flow Cytometry  (UMMC-East Bank)


Interpretive

Use:Rituximab (retuxin) monitoring


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