Thyroxine, Free (FT4)
Explore detailed information about this diagnostic testTest Information
Name: Thyroxine, Free (FT4)
Code: 225
Sample Type: Serum (Chem)
Turnaround Time (TAT): 7 days
Preparation & Notes
1 mL Serum (Minimum 0.5 mL) Note: The test will order reflexively based on the Thyroid testing algorithm. See TSH for details.