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

Methodology

Flow Cytometry
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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
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Performing Laboratory

Warde Medical Laboratory
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New York DOH Approval Status

No
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