Free T3, Plasma

Department

Core Biochemistry

Delphic Registration Code

FT3

Synonyms

T3 (Free) Plasma
Tri-iodothyronine (Free T3)

Turnaround Time

3 hours

Test Code

3777

Specimen Type

• Serum
• Plasma

Specimen Requirements

Tube/Container Type:

Preferred

• Lithium Heparin - Non-gel (Green Cap)

Preferred if West Coast

• Lithium Heparin - Gel (Light Green Cap)

Acceptable

• Serum (Red Cap)
• SST II (Gold Cap)
• Lithium Heparin - Gel (Light Green Cap)

Preferred Sample Volume (ml)

4.5

No of Samples Required

1

Paediatric Specimen Requirements

Tube/Container Type:

Preferred

• Lithium Heparin - Non-gel (Green Cap)

Preferred Sample Volume (ml)

0.6

Aliquot Instructions

Sample Type

• Serum
• Plasma

Minimum Volume (ml)

0.25

Transport to Lab

Frozen

Reference Intervals

Adults

3.3 – 6.8 pmol/L

Paediatrics

Age	R.I. (pmol/L)
0 – 1 year	4.3 – 6.9
1 year – 15 years	4.0 – 6.2
> 15 years	3.3 – 6.8

 

Change in reference range effective as of 18/08/2021

Test Method

Paramagnetic particle, chemiluminescent immunoassay performed on Beckman Coulter DxI 800 using Beckman Coulter reagents

Non-Funded Test Cost

$15.06 (Exclusive of GST)

Billing Code

9855

Contact Information

Enquiry Form