Facebook Pixel


To protect the health and wellbeing of our community, no visitors are allowed into our hospitals until further notice.
Limited exceptions may be made. Learn more.

Now offering virtual visits for all WakeMed Physician Practice primary care and specialties locations. Schedule an appointment today.

Visit COVID-19 Information Page

Find A Test

Name of Test
T4, Free
Alternate Names
FT4, Free T4
SoftLab Order Code
Epic Order Name
Epic Order ID
In House
Additional Test Information
Free T4 is susceptible to biotin interference at a concentration of 100 ng/mL
Collection Container
RST (Orange top - Rapid Serum Tube)
Collecting Volume
1.0 ml
Minimum Collecting Volume
1.0 ml
Patient Preparation
Patients taking Biotin should not be tested.
Not Available STAT
Back to search