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'Thyroid Diseases' 

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Thyroid-Stimulating Hormone (TSH)  *Build Your Own Panel Eligible [?]
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Thyroid-Stimulating Immunoglobulin (TSI)  *Build Your Own Panel Eligible [?]
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Thyroxine (T4), Total and Tri-iodothyronine (T3) Total  Info More Info/Compare
Thyroxine Free (FT4), Immunoassay  *Build Your Own Panel Eligible [?]
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Thyroxine Free, Direct (FT4)  *Build Your Own Panel Eligible [?]
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Thyroxine Free, Direct Dialysis (FT4) - (QUEST DIAGNOSTICS)
Free T4 by equilibrium dialysis is the most accurate measure of Free T4. Results are independent of the concentration of the T4-binding proteins, the presence of molecular variants of these proteins, or circulating autoantibodies. Free T4 is useful in distinguishing euthyroidism from thyroid disease. Thyroxine (T4) is a hormone produced by the thyroid gland. A test of the amount of T4 in the blood is a way to see how well the thyroid gland is working.

A significant deviation from the normal range may require further evaluation by your physician.

Alternative Name(s):
FT4; T4 Free

Thyroxine Free, Direct Dialysis (FT4)

Samples should not be collected during or soon after the administration of Heparin.

Estimated turnaround for results is 7 business days. If confirmation testing is required, the estimated time may be extended.
Categories: Fitness, Nutrition and Anti-Aging, Hormones and Metabolism, Thyroid Diseases

Tri-iodothyronine Free, Serum (FT3)  *Build Your Own Panel Eligible [?]
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Tri-iodothyronine T3 Total and Free T3  Info More Info/Compare
Ultimate Thyroid Panel with Basic Hormones  Info More Info/Compare
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