Lab
Reverse T3
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Reverse T3
Reverse T3 is the inactive form of T3. This test helps determine if your body is converting too much T4 into Reverse T3, which can indicate thyroid dysfunction or stress. High levels of Reverse T3 may contribute to symptoms like fatigue and low metabolism, even when T3 levels are normal.
What to Expect
Root labs are drawn at Quest Labs available nationwide. Fasting is required for most labs. Please check for a location near you before purchasing.
Details
Biomarker(s) tested:
Reverse T3 (Reverse Triiodothyronine)
Reverse T3 (Reverse Triiodothyronine)
Results
The turnaround time for results and Root doctor insights is typically 3–4 weeks post-draw. Once ready, the Root team will upload them to your personal Root dashboard and alert you for viewing.
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