Back to catalog
Hormone Tests
Total T4
Measures all thyroxine hormone in blood. Used to assess overall thyroid function.
CPT code
84436
Turnaround time
24–72 hours
Fasting required
No fasting needed
Collection container
—
About this test
Measures all thyroxine hormone in blood. Used to assess overall thyroid function.
How to prepare
- 1
Bring a valid photo ID to your appointment
- 2
Plan for a 15–30 minute visit
Panels including this test
Save by ordering this test as part of a curated bundle: