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CD20
MessagePerformed in the Hematology/Flow Cytometry Laboratory x5789.
Due to sample stability, samples cannot be collected on Saturdays or Sunday of a 3-day weekend.
Due to sample stability, samples cannot be collected on Saturdays or Sunday of a 3-day weekend.
Test Code
CD20
CPT Codes
86355
Includes
CD 20% and absolute counts
Preferred Specimen
whole blood
Minimum Volume
0.5 mL
Instructions
Store at room temperature. Do not refrigerate.
Transport Container
3 mL Purple top (EDTA)
Transport Temperature
Room temperature
Specimen Stability
Room temperature: 24 hours
Reject Criteria (Eg, hemolysis? Lipemia? Thaw/Other?)
gross hemolysis, QNS, clotted
Methodology
Flow cytometry
Setup Schedule
M-F 9 AM-5PM
Reference Range
for male/females age 0-150 years:
CD20%: 5-30
CD20 absolute: (K/uL) age 0-9 days: 0.2-1.5
age 9 days-1 yr: 0.25-3.0
age 1-2 yr: 0.5-1.5
age 2-5 yr: 0.3-0.8
age 5-8 yr: 0.2-0.75
age 8-12 year: 0.1-0.6
> 8 year: 0.08-0.6
CD20%: 5-30
CD20 absolute: (K/uL) age 0-9 days: 0.2-1.5
age 9 days-1 yr: 0.25-3.0
age 1-2 yr: 0.5-1.5
age 2-5 yr: 0.3-0.8
age 5-8 yr: 0.2-0.75
age 8-12 year: 0.1-0.6
> 8 year: 0.08-0.6
Clinical Significance
CD20 values may be used to evaluate immune competency, underlying known and unknown disease states.
