Test Details

Mnemonic

T3

Ordering Code

1011000

CPT-4 Code(s)

84480

Specimen Information

Collect

SST

Specimen Preparation

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

Alternate Specimen

Serum: Red-top

Minimum Volume

0.4 mL

Transport Temperature

Frozen

Rejection Criteria

Grossly hemolyzed or grossly lipemic specimens. Plasma

Stability

Room temperature: 8 hours
Refrigerated: 48 hours
Frozen: Undetermined

Methodology

Chemiluminescence
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Reference Range

Age Reference range
1 - 23 months 117 - 239 ng/dL
24 months (2 years) - 12 years 105 - 207 ng/dL
13 years - 20 years 86 - 192 ng/dL
21 years and above 60 - 181 ng/dL
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Performing Laboratory

Warde Medical Laboratory
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New York DOH Approval Status

Yes
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