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T-4, FREE

 
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Description
 

CPT Code(s)

84439

Methodology

Immunoassay (IA)

Reference Range(s)

<1 YearNot established
1-9 Years0.9-1.6 ng/dL
10-18 Years0.9-1.4 ng/dL
>18 Years0.8-1.8 ng/dL

Clinical Significance

For diagnosis of hypothyroidism and hyperthyroidism.

Test FAQ

T4, Free

Alternative Name(s)

FT4


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