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Attention, chocolate lovers: You may not be able to help yourselves. Swiss and British scientists have linked the widespread love of chocolate to a chemical "signature" that may be programmed into our metabolic systems.
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Thyroxine Test - T4
Results and Values
What do the test results mean?
Normal levels of T4 range from 4.5 to 12.5 micrograms per deciliter (mcg/dL). Abnormally high levels of T4 may be seen with disorders that stimulate the thyroid gland. These include the following:
Abnormally low T4 levels may indicate the following: