Test Details

Mnemonic

TSI

Ordering Code

3426720

CPT-4 Code(s)

84445

Specimen Information

Collect

SST
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Specimen Preparation

Centrifuge, separate serum from cells and send 1.0 mL serum refrigerated in a screw-capped plastic vial.
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Alternate Specimen

Serum: Red-top
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Minimum Volume

0.5 mL
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Transport Temperature

Refrigerated
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Rejection Criteria

Gross hemolysis, lipemia, icterus, plasma
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Stability

Room temperature: Unacceptable
Refrigerated: 7 days
Frozen: 1 year
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Methodology

Chemiluminescence
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Reference Range

<0.10 IU/L
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Performing Laboratory

Warde Medical Laboratory
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