Free T3

Test information: Tri-iodothyronine (T3) constitutes approximately 5% of the thyroid hormones in serum. T3 is produced by both the thyroid gland and mono-deiodination of Thyroxine.

Specimen Type(s)

• Blood;

Other Acceptable Specimen Type(s)

N/A

Specimen Container - Adult

• Gold Top SST BD;

Specimen Container - Paediatric

• Clear - Plain;

Analytes

• N/A;

Part of a test profile?

No

Volume (min) of sample to be sent to laboratory

4ml

Patient Preparation, Sample Handling and Transport

N/A

Maximum add on time

5 Days (Primary care contact lab)

Units and Reference Ranges / Interpretation

RR for Male and Female less than 1yr - 3.6 - 7.5 - pmol/L 1yr to less than 12yrs - 4.3 - 6.8 - pmol/L RR for Female - 12yrs to less than 15yrs - 3.8 - 6.1 - pmol/L RR for Male - 12yrs to less than 15yrs - 4.4 - 6.7 - pmol/L RR for Female - 15yrs to less than 19yrs - 3.6 - 5.7 - pmol/L RR for Male - 5yrs to less than 19yrs - 3.5 - 5.9 - pmol/L RR for Male and Female - 19yrs and above 2.5 to 6.0 - pmol/L

UKAS number

8869

UKAS accredited test?

No

Comments

N/A

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