The simple idea
Transport: over 99% of T4 and T3 travels bound to proteins (mainly thyroxine‑binding globulin, TBG). Only the tiny free fraction acts.
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Part 8 · Hormones
Same concept, other depth: Clinical Reasoning →
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Transport: over 99% of T4 and T3 travels bound to proteins (mainly thyroxine‑binding globulin, TBG). Only the tiny free fraction acts.
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Talk it through with Dr. Amy
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