Test Name

Free T3

Test Code

5921

Unit

pg/mL

Station

Chemistry

CPT Code

82728

Performing Facility

American Medical Labs, Herzliya
Pituah

Analyzer

Roche cobas 6000

Test Method

Electrochemiluminescence immunoassay
(ECLIA)

AML Preferred Tube

5 mL SST gel

Storage Instructions

Stability:

7 days at 2 to 8 ^oC

30 days at -20 ^oC , Freeze only once.

Min. Volume

1 mL

Turn-Around-Time

One day.

Intended Use

Free T3 is a useful tool in clinical routine dignostics for the assessment of the thyroid status .
Free T3 measurements support the differential diagnosis of thyroid disorders, distinguish different forms of hyperthyroidism, and identify
patients with T3 thyrotoxicosis.

Limitations

Samples should not be taken from patients receiving therapy with high biotin doses (i.e. > 5 mg/day) until at least 8 hours following the last biotin administration.

Patient Preparation

No patient preparation needed.

Reasons for Rejection

Do not use sodium citrate tube, Improper labelling.

Adult Reference Ranges

2.0-4.4 pg/mL