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B Cell Subsets

Source Blood
Mnemonic BSUBSETS (Note: CBC/DIFF required if not already collected same day)
Specimen Requirements

1 x 4 mL dark green top sodium heparin tube. NOT PST.

Minimum volume: 1 mL
Also accepted: EDTA, sodium citrate, ACD-A

Specimen Handling

Mix well. DO NOT centrifuge or freeze.

Specimens submitted to CLS from outside Alberta: CBC/DIFF required: fax CBC/DIFF results to 403-270-4135.
DO NOT centrifuge or freeze specimens. Follow Flow Cytometry Shipping and Handling instructions when sending to CLS.

Additional Information The following B cell subsets are enumerated: memory, naïve, memory non-class switched, memory class switched, memory IgM+, transitional, activated CD21low, immature CD21low, plasmablasts.
Testing Location Flow Cytometry
Testing Frequency Monday - Friday
Alternate Name(s)
Reference Interval Shown on report.