Tri-iodothyrinine (Total T3)
Test Identifier Information | |
| Method | Beckman-Coulter Access Analyser - CMIA |
| External Price | $26.63(Exclusive of GST) |
Specimen Collection | |
| Pre-Testing Requirements | Patients who are undergoing biotin therapy and/or ingesting biotin supplements with levels of >100ng/mL will show a falsely high TT3 result in the Beckman TT3 assay. |
| Patient Specimen | Blood 5 ml plain(Red), Heparin(Green) |
| Paediatric Specimen | Blood 1.0 ml plain (2 full paediatric microtainer tubes) |
| Sample Delivery to Lab | Ambient |
Instructions for Referral to CHLabs | |
| Aliquot Instructions | Minimum 1.0 ml serum. Ideally 1.5 ml. This volume allows all total thyroid function tests to be performed. Fridge 4C. |
| Aliquot Transport to CHL | Separated serum: Frozen |
CHLabs Laboratory | |
| Department | Endocrinology Laboratory |
| Contact Details |
Email
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| Contact Phone Number | (03) 364 0848 l x80848 |
| Test Availability | Monday - Friday (business hours) |
| Turnaround Time | 2 hrs - 3 days |
| Reference Interval | 1.3 - 2.7 nmol/L (Manufacturers data). |
| Uncertainty of Measurement | +/- 0.2nmo/L for <1.60 nmol/L 12.5% for >1.60 nmol/L |
| Additional Information | EDTA not acceptable. Adjunct to primary thryoid function screen. Automated method with different reference range introduced 22 August 2014 |
| Delphic Number Test Number | 8865 |
