Measurement of free T3 is a sensitive test for hyperthyroidism since levels are usually raised proportionately more than free T4. In T3 thyrotoxicosis, free T3 is elevated but free T4 is normal.
Tube
01 (SE) – Serum Gel
ID
Tests&Tubes0191
Additional information
No additional information.
Turn around
A&E: N/A
Day Case: N/A
In-Patient: 24 Hours
Out-Patient: 24 Hours
GP: 72 Hours
Send to
Blood Sciences Cross Site
Contact
For further details please contact Leeds Pathology customer services: [email protected].
Advice
No linked information.
Collection Con
Minimum volume – 250µl serum / plasma Instructions for Lab Staff: Standard lab processing- No special requirements
Sample REQ
Blood
Ref. Range Notes
3.5 – 6.8 pmol/L
Units
pmol/L