CD20+ (B CELLS) COUNT, BLOOD - NorDx Test Catalog

Additional Codes

Software	Test Code
Label Text	CD20
EPIC	LAB10920

Performing Laboratory

NorDx Laboratories

Useful For

Assessing response to B-cell depletion immunotherapy

Method Name

Flow Cytometry

This assay is a lab developed test established by the NorDx Flow Cytometry Laboratory. This laboratory is certified under the Clinical Laboratory Improvement Amendments (CLIA) as qualified to perform high complexity clinical laboratory testing. This test is used for clinical purposes. It should not be regarded as investigational or for research.

Reference Values

Percent and absolute counts of CD20+ cells reported with age specific normal ranges.

Days and Times Test Performed

Monday through Friday

Specimens drawn on Friday MUST ARRIVE in Scarborough lab before midnight Friday to ensure processing within 48 hours of collection.

Report Available

1 Day

Profile Information

Individual Test Description
CD20+ (B CELLS) PERCENT
CD20+ ABSOLUTE

Specimen Type

Whole Blood

Preferred Container

Lavender Top Tube (EDTA)

Preferred Volume

Whole Blood: 4.0 mL (Lavender Top Tube (EDTA))

Minimum Volume

Collecting minimum volumes can result in a need for sample recollection, and/or a delay in results. Minimum volumes are subjective and cannot account for all aspects of specimen and testing needs. Refer to the Preferred Volume section for optimal volumes for laboratory specimens.

Whole Blood: 2.0 mL (Lavender Top Tube (EDTA))

Specimen Collection and Handling

Send at ambient temperature.

Specimen must be received within 48 hours of draw.

Date of collection is required on the request form for processing.

Add On Capable

Yes.

Advance Beneficiary Notice Requirements

No ABN Required

CPT Code Information

CPT Code	CPT Description	CPT Disclaimer
86355	B Cells, Total Count

Performing Laboratory Location