Test Category: Biochemistry
Investigation Name:Free T4 (FT4)
Accreditation:UKAS Accredited ISO15189:2022 On scope
Pathology Laboratory:Clinical Chemistry/ Biochemistry
Requestable Seperately?Yes
Part of Profile:Yes
Units:pmol/l
Minimum Sample Volume:Adults: 1mL
Infants: 0.5 mL
Expected Turnaround Time:Inpatients: 4 hrs
Outpatients:1 day (from receipt)
Test Code:FT4
Sample Type:
Serum Gel Tube (Gold top)Maximum Add on Time:3 days
Complex Reference Range:Males
<2 mths 10.1-23.6 pmol/l
2-<12mths 9.2-20.1 pmol/l
12-<24mths 10.6-17.0 pmol/l
2-<5y 10.3-17.0 pmol/l
5-<10y 10.1-16.6 pmol/l
Females
<2 mths 8.9-23.9 pmol/l
2-<12mths 8.9-19.2 pmol/l
12-<24mths 9.4-18.2 pmol/l
2-<5y 10.2-17.8 pmol/l
5-<10y 9.9-17.0 pmol/l
Pregnancy
1st T 10.5-18.3 pmol/l
2nd T 9.5-15.7 pmol/l
3rd T 8.6-13.6 pmol/l
Referred to Another Laboratory?No
Contact Number:01902 307 999 Ext 88266
