This test is used as a complementary study when evaualting thyroid function.
Free T4 may be indicated when binding globulin (TBG) problems are perceived, or when conventional test results seem inconsistent with clinical observations. It is normal in subjects with high thyroxine-binding globulin hormone binding who are euthyroid (ie, free thyroxine should be normal in nonthyroidal diseases). It should be normal in familial dysalbuminemic hyperthyroxinemia.
Diagnosing and monitoring treatment of hypo/hyperthyroidism.
No special preparation is necessary prior to blood sample collection.
T4, Free, Direct, Serum – TC – 35167
Estimated Turn Around For Results:
2-10 Business Days
For an exact turnaround time for results, please contact us at Personalabs and we will contact the lab on your behalf as turnaround times vary depending on testing location or lab testing provider.
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The Thyroid test is aimed at those who have an awareness of thyroid problems including Hashimotos or Graves disease.
Testing for Iodine levels
If medullary thyroid cancer runs in your family, order the Calcitonin blood test with Personalabs to find out if you’re at risk.