Test Details
Mnemonic
TBNK
Ordering Code
3080090
CPT-4 Code(s)
86360, 86355, 86357, 86359
Specimen Information
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Collect
Lavender EDTA
Specimen Preparation
Send 4.0 mL whole blood room temperature in original collection tube. Ship within 24 hours of collection. If a sample collected Thursday or Friday is not received by Saturday, 72 hour stability will be exceeded by Monday and testing will be canceled.
Minimum Volume
1.0 mL
Transport Temperature
Room temperature
Rejection Criteria
Heparinized samples, ACD samples, refrigerated and frozen samples, clotted specimens
Stability
Room temperature: 72 hours
Refrigerated: Unacceptable
Frozen: Unacceptable
Refrigerated: Unacceptable
Frozen: Unacceptable
Methodology
Flow Cytometry
Reference Range
<16 years: By report
Adult >16 years:
Pan T Cell (CD3): 55 - 86%
Pan T Cell (CD3): 704 - 2138 C/UL
T Helper Cell (CD4): 35 - 66%
T Helper Cell (CD4): 443 - 1471 C/UL
T Suppressor Cell (CD8): 9 - 37%
T Suppressor Cell (CD8): 190 - 832 C/UL
B Cell (CD19): 4 - 25%
B Cell (CD19): 100 - 524 C/UL
Natural Killer Cell (CD16+56): 3 - 24%
Natural Killer Cell (CD16+56): 60 - 500 C/UL
T4/T8 Ratio (CD4:CD8): 1.0 - 3.7 Ratio
Adult >16 years:
Pan T Cell (CD3): 55 - 86%
Pan T Cell (CD3): 704 - 2138 C/UL
T Helper Cell (CD4): 35 - 66%
T Helper Cell (CD4): 443 - 1471 C/UL
T Suppressor Cell (CD8): 9 - 37%
T Suppressor Cell (CD8): 190 - 832 C/UL
B Cell (CD19): 4 - 25%
B Cell (CD19): 100 - 524 C/UL
Natural Killer Cell (CD16+56): 3 - 24%
Natural Killer Cell (CD16+56): 60 - 500 C/UL
T4/T8 Ratio (CD4:CD8): 1.0 - 3.7 Ratio
Performing Laboratory
Warde Medical Laboratory
New York DOH Approval Status
Yes