ARUP's Laboratory Test Directory
| 0070474: Triiodothyronine, Total (Total T3) |
| Test Mnemonic: T3 TOTAL | |
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#ExistMethodology>
Methodology: Electrochemiluminescent Immunoassay
*ExistMethodology> #ExistPerformed> Performed: Sun-Sat *ExistPerformed> #ExistReported> Reported: Within 24 hours *ExistReported> |
| Specimen Required: | |
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#ExistCollect>
Collect: One 4 mL SST or PST. Also acceptable: one 3 mL lavender (EDTA), pink (K2 EDTA), or green (sodium or lithium heparin).
*ExistCollect> #ExistTransport> Transport: 1 mL serum or plasma at 2-8°C. (Min: 0.5 mL) Submit sample in an ARUP Standard Transport Tube. *ExistTransport> #ExistPedCollectTransport> Pediatric Collection/Transport: 0.3 mL serum or plasma at 2-8°C. *ExistPedCollectTransport> #ExistRemarks> Remarks: Allow serum to clot completely at room temperature. Separate serum or plasma from cells ASAP. *ExistRemarks> #ExistConditions> Unacceptable Conditions: Grossly hemolyzed samples. *ExistConditions> #ExistStability> Stability: After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 1 month *ExistStability> |
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| Reference Interval: |
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#ExistRefRange> Cord blood: 14-86 ng/dL 1-7 days: 100-470 ng/dL 8-364 days: 105-245 ng/dL 1-9 years: 94-269 ng/dL 10-19 years: 102-200 ng/dL 20 years and older: 80-200 ng/dL *ExistRefRange> |
| CPT Code(s): | |
| 84480 |