Thyroxine, free

Thyroxine, free is a topic covered in the Guide to Diagnostic Tests.

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Test/Range/Collection

Thyroxine , free, serum or plasma (free T4 or FT4)

0.8–1.7 ng/dL

[10–22 pmol/L]

(method-dependent)

SST, light green PPT, green

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