T3 Uptake QT3UP
| Method(s) | Immunoassay (IA) |
|---|---|
| Synonym | Resin Uptake, T3 (Triiodothyronine), T3 Index, T3 Resin Uptake, T3RU, Triiodothyronine, Resin Uptake (T3), Hanolsky Uptake Test |
| Specimen Required | |
| Collect | One 5 mL gold (SST) top tube. Also acceptable: Plasma collected in green (sodium heparin) and green (lithium heparin) top tube. |
| Transport | 1 mL serum ambient (Min: 0.5 mL). |
| Stability | Ambient: 7 days Refrigerated: 10 days Frozen: 28 days |
| Schedule | Sun-Fri |
| CPTCode | 84479 |
| Notes | Performing Laboratory-Quest Diagnostics-Pittsburgh Lab |
| Preferred Specimen Collection Device(s) | |
| Reference Interval | |
|
22-35% |
|
