Also known as: Free T3, FT3
Specimen requirements
Adult sample type: Serum (gold/yellow top SST)
Paediatric sample type: Plasma (orange top paediatric tube)
Collection requirements: No special requirements
Cost
Price on application
Turnaround time
Analytical method
Immunoassay - Indirect / Competitive
Analysis undertaken at these site(s)
- John Radcliffe Hospital
- Horton General Hospital
Reference intervals
Female
<1 year: 3.6 - 7.5 pmol/L
1 - 5 years: 4.4 - 6.9 pmol/L
6 - 10 years: 4.4 - 6.7 pmol/L
11 - 14 years: 4.0 - 6.5 pmol/L
15 - 19 years: 3.6 - 5.9 pmol/L
> 19 years: 3.0 - 5.4 pmol/L
Male
<1 year: 3.6 - 7.5 pmol/L
1 - 5 years: 4.4 - 6.9 pmol/L
6 - 10 years: 4.4 - 6.7 pmol/L
11 - 14 years: 4.0 - 6.5 pmol/L
15 - 19 years: 3.6 - 5.9 pmol/L
> 19 years: 3.0 - 5.4 pmol/L
