Investigation Name:Free Tri-iodothyronine (FT3)

Alias or Abbreviation:Free T3

Accreditation:UKAS Accredited ISO15189: 2022 On scope

Pathology Laboratory:Clinical Chemistry/ Biochemistry

Requestable Seperately?No

Part of Profile:Yes

Tests in Profile:FT3, FT4, TSH

Units:pmol/L

Minimum Sample Volume:Adults: 1 mL
Infants: 0.5 mL

Expected Turnaround Time:Inpatients: 4 hrs
Outpatients: 1 day

Test Code:FT3

Sample Type:

Complex Reference Range:Females
4d-364d 3.6-7.5 pmol/l
1y-11y 4.3-6.8 pmol/l
12y-14y 3.8-6.1 pmol/l
15y-18y 3.6-5.7 pmol/l
≥19y 2.4-6.0 pmol/l
Pregnancy Ranges
1st T 3.5-6.2 pmol/l
2nd T 3.4-5.8 pmol/l
3rd T 3.3-5.6 pmol/l
Males
4d-364d 3.6-7.5 pmol/l
1y-11y 4.3-6.8 pmol/l
12y-14y 4.4-6.7 pmol/l
15y-18y 3.5-5.9 pmol/l
≥19y 2.4-6.0 pmol/l

Referred to Another Laboratory?No

Site Sample Tested:All acute sites

Contact Number:01902 307 999 Ext 88266