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HelpTest Code T3FRE T3 (Triiodothyronine), Free
Additional Codes
Epic EAP: LAB137
Epic Description: T3, FREE
Synonym
Free T3
Specimen Type
Blood
Specimen Required
| Collection Container | Preferred Volume | Minimum Volume | |
|---|---|---|---|
| Preferred |
Green, Lithium Heparin with Inert Gel |
4.5 mL | 1.0 mL |
| Alternate | Gold, Clot Activator with Inert Gel OR Red, No Anticoagulant, No gel | 4.5 mL | 1.0 mL |
| Preferred Micropuncture | Green Micro, Lithium Heparin with Inert Gel | 2 X 0.6 mL | 2 X 0.6 mL |
| Alternate Micropuncture | Gold Micro, Clot Activator with Inert Gel | 2 X 0.6 mL | 2 X 0.6 mL |
Instructions for Collection and Transport
Centrifuge specimen. Transport refrigerated on freeze packs. If holding overnight, aliquot plasma or serum into plastic vial and refrigerate. Transport refrigerated on freeze packs.
Home Health Agencies: Keep specimen cool. Deliver to testing lab within 4 hours.
Aliquot Requirements
Plasma or Serum
Optimum 2.0 mL
Minimum 0.5 mL
Performing Lab
Automated Chemistry Lab
Assay Frequency
24/7
Routine Turnaround Time
24 hours
CSR Storage Requirements
Centrifuge specimen. Transport to lab. If holding overnight, aliquot serum/plasma into plastic vial and refrigerate.
CPT Code Information
84481