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Normal T4 test findings are 4-12.
The serum thyroxine (T4) study is a direct measurement of the total amount of T4 present in the blood. T4 makes up nearly all of what we call thyroid hormone. Below-normal values are seen in hypothyroidism.
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My Wife Has A Thyroxine Blood Level Of 1.5, Is This Low Or Normal ?
Normal T4 test findings are 4-12. The serum thyroxine (T4) study is a direct measurement of the total amount of T4 present in the blood. T4 makes up nearly all of what we call thyroid hormone. Below-normal values are seen in hypothyroidism.