T4, Free - DHA Laboratory

Lab Testing


T4, Free


SKU: 001974


Product Description

**Note: All laboratory testing requires an authorizing physician. DHA Laboratory offers a patient direct program that partners you with an authorizing physician. If you have any additional questions regarding the availability of testing, please contact our laboratory by telephone or email.**


This test is used when Free T4 may be indicated when TBG (thyroxine-binding globulin) problems are suspected. It can also be used to diagnose thyroid disease and screen for hypothyroidism in newborns.


Patient Preparation: Discontinue any supplements containing Biotin for 72 hours prior to specimen collection.

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Commonly Purchased Items With This Test

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