T4

Synonym(s)	Thyroxine, FT4, Free T4
Specimen	4 mL Lithium Heparin (green top) or SST (gold top)
Paediatric Specimen	0.5 mL Brown, yellow, or green top
Add-on conditions	24 hours @ 4°C
Test Availability	Mon - Sun, 24 hours
Turnaround Time	Hastings 1 - 2.5 hours / Central HB 6 - 8 hours / Wairoa 12 hours
Where analysed	Hastings
Department	Biochemistry, (06) 878 1308 ext. 2448
Registration Code	PFT4
Deletion Code	3284
Useful Information	Click Here
Measurement Uncertainty	Available upon request