Free T3, Serum

Overview
Department	Biochemistry
Test Code	PFT3
Synonyms	FT3 Free tri-iodothyronine Tri-iodothyronine
Turnaround Time	2hrs – 6hrs
Stability – Add test
Specimen Requirements
Specimen Type	Serum Plasma
Specimen Transportation
Preferred	6 mL Red-Top
Acceptable	4 mL Green-Top
Pediatric Requirements	Li-Hep Microtainer
Aliquot Requirements
Sample Type	Serum
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 ci8200 analyser using Abbott reagent.  CMIA immunoassay.
Advanced Notice
Patient Preparation
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