Thyroid Panel
Test Code: 000455
Performing Lab: LabCorp
CPT Code: 84479 001 84436 001
Synonym
'99 Thyroid Panel (Compliance) Free Thyroxine Index; FTI; Thyroid Profile A (Euthyroid) hormone binding ratio (T3 uptake)
Specimen Type
Serum (preferred) or plasma
Specimen Container
Red-top tube, gel-barrier tube, OR green-top (lithium heparin) tube. Do NOT use oxalate, EDTA, or citrate plasma.
Volume
1 mL
Minimum Volume
0.7 mL (NOTE: This volume does NOT allow for repeat testing.)
Specimen Handling
If a red-top tube or plasma tube is used, transfer separated serum or plasma to a plastic transport tube.
Temperature
Room temperature
Methodology
Electrochemiluminescence Immunoassay (ECLIA)
Stability
Room Temperature: 14 days
Refrigerated: 14 days
Frozen: 14 days
Refrigerated: 14 days
Frozen: 14 days
| Result Code | Result Name | LOINC |
|---|---|---|
| 001149 | Thyroxine (T4) | 3026-2 |
| 001156 | T3 Uptake | 3050-2 |
| 001164 | Free Thyroxine Index | 32215-6 |
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