Service Description

The T3 Reverse test measures levels of reverse triiodothyronine (rT3), an inactive form of the thyroid hormone T3. It helps evaluate thyroid function and metabolism. Why it’s done: To assess thyroid hormone metabolism and function To help diagnose hypothyroidism or thyroid hormone imbalances To evaluate symptoms such as fatigue, weight changes, or temperature intolerance To monitor thyroid treatment or medication effects To support assessment of overall metabolic health Specimen Type: Blood draw Turnaround Time: Typically 2–5 business days Collection Available: In-office or mobile blood dr