ARUP's Laboratory Test Directory
| 0070188: Triiodothyronine, Reverse |
| Test Mnemonic: RT3 | |
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#ExistMethodology>
Methodology: Radioimmunoassay
*ExistMethodology> #ExistPerformed> Performed: Tue-Fri *ExistPerformed> #ExistReported> Reported: 1-5 days *ExistReported> |
| Specimen Required: | |
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#ExistCollect>
Collect: One 4 mL SST. Also acceptable: lavender (EDTA) or pink (K2 EDTA).
*ExistCollect> #ExistTransport> Transport: 1 mL serum or plasma, frozen. (Min: 0.3 mL) Submit sample in an ARUP Standard Transport Tube. *ExistTransport> #ExistPedCollectTransport> Pediatric Collection/Transport: 0.2 mL serum or plasma, frozen. *ExistPedCollectTransport> #ExistStability> Stability: After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 3 months *ExistStability> |
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| Reference Interval: |
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#ExistRefRange> Birth-6 days: 600-2500 pg/mL 7 days and older: 90-350 pg/mL *ExistRefRange> |
| Interpretive Data: | |
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#ExistInterpData>
Please refer to Statement D in the Compliance Statements section in the front of the Laboratory Test Directory. *ExistInterpData> |
| CPT Code(s): | |
| 84482 |