| triiodothyronine resin uptake t. |
a thyroid function test, measuring how many sites on thyroxine-binding globulin (TBG) are occupied by endogenous triiodothyronine (T3) and how many sites remain available. An excess of radioactive exogenous triiodothyronine is added to the sample, followed by the addition of a resin that also binds T3. A portion of the radioactive T3 binds to sites on TBG not already occupied by endogenous thyroid hormones, and the remainder binds to the resin. The amount of labeled hormones bound to the resin (the triiodothyronine resin uptake) can be subtracted from the total that was added and the remainder is the amount that bound to the unoccupied binding sites on the thyroxine-binding globulin.
출처: www.mercksource.com/pp/us/cns/cns_health_library.j...
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| triiodothyronine |
One of two forms of the principal hormones secreted by the thyroid gland 1 .
출처: www.levoxyl.com/glossary.htm
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