Free T4
This test measures the amount of
free thyroxine or Free T4, in the
blood.
Free T4 is the not bound to a protein but free. Unlike T4 it is
not affected by protein levels and protein binding ability. Since
free
T4 is the active form of thyroxine, it is thought by many to be a more
accurate reflection of thyroid hormone function and, in many cases, its
use has replaced that of the total T4.
Product Specifications:
- Product code: GDB711225
- Calibrators: 0, 0.4, 1, 1.85, 3.50, 7.20 ng/dl (Lot Specific)
- Sample: 50 µl
- Sensitivity: 0.05 ng/ml
- Total Time: 75 Minutes
- Shelf Life: 18 Months