Free Triiodothyronine (FT3)
REQUESTING AND COLLECTING
Container(s):
Serum (gold-top) - preferred

Heparin tube (5 mL lime-top) - acceptable

EDTA (5 mL purple-top) - NOT Acceptable

GENERAL INFORMATION

Availability:
Test performed 7 days/24 hours. Results available 2 hours after sample

arrival in laboratory.

Reference Intervals:
Change to Beckman-Coulter method on 2/9/18.

New adult reference interval applied.

Adult: 4.0 - 6.0 pmol/L

Paediatric:

7 days to 2 months: 2.9 - 9.0

3 months to 3 years: 3.8 - 9.0

4 years to 8 years: 4.5 - 9.0

9 years to 15 years: 4.5 - 8.0

16 and 17 years: 3.0 - 7.5

18 years and older: adult intervals

1st trimester: 4.0 - 6.0 (same as non-pregnancy range)

2nd and 3rd trimeters: 3.5 - 5.5

(Preg RI derived form : Ekinci et al, ACB 2013)

Laboratory:
Auto Chemistry (8382-9164)

Patient Results:
(02) 8382-9100
Synonyms:
Free T3

FT3

T3 - free

Triiodothyronine, free
.
INSTRUCTIONS FOR REFERRING LABORATORIES
Handling & Transport:
Store and transport sample at 4°C.
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INSTRUCTIONS FOR HANDLING AT SYDPATH
SydPath Handling:
SPRO: Place on MPA (heparin first unless serum first for other tests)

Data Entry Code:
FT3

SydPath Division:
Chemical Pathology

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Date/Time published: 30/03/2020 17:34:45
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