Triiodothyronine, Total and Triiodothyronine, Reverse with Ratio Calculation by Tandem Mass Spectrometry
| CPT Code(s): | 84480; 84482 |
| Specimen Required: | Patient Preparation: Collect:Serum separator tube or plain red. Also acceptable: Lavender (EDTA) or pink (K2EDTA). Specimen Preparation:Allow serum specimen to clot completely at room temperature. Separate serum or plasma from cells ASAP or within two hours of collection. Transfer 2 mL serum or plasma to an RDL Standard Transport Tube. (Min: 1 mL) Storage/Transport Temperature:Frozen. Stability:After separation from cells: Ambient: 24 hours; Refrigerated: 1 week; Frozen: 3 months |
| New York DOH Approval Status: | This test is New York DOH approved. |
| Aliases: |
