Test Details

Mnemonic

TBNK

Ordering Code

3080090

CPT-4 Code(s)

86360, 86355, 86357, 86359

Specimen Information

Collect

Lavender EDTA
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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 is not received by Saturday, 72 hour stability will be exceeded by Monday and testing will be canceled.
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Minimum Volume

1.0 mL
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Transport Temperature

Room temperature
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Rejection Criteria

Heparinized samples, ACD samples, refrigerated and frozen samples, clotted specimens
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Stability

Room temperature: 72 hours
Refrigerated: Unacceptable
Frozen: Unacceptable
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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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