Tests:Free T3, Serum: Difference between revisions

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Tests:Free T3, Serum
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m Bulk update DocMeta owner to Crossley1
Updated method Alinity
 
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|Test Method
|Test Method
|Abbott ci8200 analyser using Abbott reagent.  CMIA immunoassay.   
|Abbott Alinity i series analyser using Abbott reagent.  CMIA immunoassay.   
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|Advanced Notice
|Advanced Notice

Latest revision as of 20:10, 14 September 2026

Overview

Department Biochemistry
Test Code PFT3
Synonyms FT3

Free tri-iodothyronine

Tri-iodothyronine

Availability Monday - Sunday, testing routinely available out of hours
Turnaround Time 2hrs – 6hrs
Stability – Add test

Specimen Requirements

Specimen Serum

Plasma

Preferred 6 mL Red-Top
Acceptable 4 mL Green-Top
Unacceptable
Specimen Transportation
Paediatric Requirements Li-Hep Microtainer

Aliquot Requirements

Sample Serum
Preferred Volume
Minimum Volume 0.3 mL (1 mL serum preferred) 
Aliquot Transportation

Clinical Information

Reference Intervals
T3 (Free) pmol/L
0 - 1 yr 4.5 – 10.5
1 -12 years 3.8 – 8.6
12 - 18 years 3.7 – 7.7
18 + Adult 2.5 – 6.0
Test Method Abbott Alinity i series analyser using Abbott reagent.  CMIA immunoassay. 
Advanced Notice
Patient Preparation

Comments

Owner Clair Crossley (Crossley1)
Last reviewed 14.09.2026
Next review 14.09.2027 (OK)