Where Free T3 is reported
| Condition | Direction | Compared against | Associated symptoms | Source |
|---|---|---|---|---|
| Hypothyroidism | ↓ reduced | primary/overt hypothyroidism patients vs healthy reference range | — | Bhattacharyya et al. 2023 |
Frequently asked questions
In which conditions is Free T3 altered?
In the OSMF atlas Free T3 is reported in Hypothyroidism. It is reduced in 1 across 1 entries.
Is there a standard clinical test for Free T3?
The atlas entries for Free T3 do not carry a LOINC code, which usually means the marker was measured with research assays or study-specific methods rather than a routine clinical panel.
Is one abnormal Free T3 result diagnostic?
No single biomarker result is diagnostic of any of these conditions. Findings reflect group averages from published cohorts with substantial overlap between patients and controls.
Cite this page
Open Source Medicine Foundation. (2026). Free T3 across conditions: biomarker evidence. OSMF Research Tracker. Retrieved October 7, 2026, from https://research.opensourcemed.info/biomarkers/markers/free-t3.html
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Last reviewed: 2026-07-03 · Browse: Biomarker Index · All marker pages · Biomarker Atlas
Disclaimer: Educational synthesis of peer-reviewed research; not medical advice. Findings are group-level and vary with study design. Discuss any result with a qualified clinician.