| 释义 |
protein-bound iodine test
protein-bound iodine test[′prō‚tēn ‚bau̇nd ′ī·ə‚dīn ‚test] (pathology) A test of thyroid function that reflects the level of circulating thyroid hormone by determination of the level of protein-bound iodine in the blood. Abbreviated PBI test. protein-bound iodine test
protein-bound iodine test a laboratory test done to determine thyroid function by measuring the amount of iodine contained in compounds bound to plasma proteins. It has been largely replaced by radioimmunoassay for the thyroid hormones thyroxine (T4) and triiodothyronine (T3).pro·tein-bound i·o·dine testa formerly used test of thyroid function in which serum protein-bound iodine is measured to provide an estimate of hormone bound to protein in peripheral blood. Synonym(s): PBI test |