Which is a laboratory test that measures the thyroid gland's ability to concentrate and retain iodine and that is useful to test for hyperthyroidism?
A) RIA
B) RAIU
C) OGTT
D) TFTs

Question

Quizplus · Accepted Answer

RAIU (Radioactive iodine uptake) is a laboratory test that measures the thyroid gland's ability to concentrate and retain iodine. It is useful to test for hyperthyroidism. RIA (Radioimmunoassay) and TFTs (Thyroid function tests) are also thyroid function tests, but they do not specifically measure the thyroid gland's ability to concentrate and retain iodine like RAIU does. OGTT (Oral glucose tolerance test) is a test used to diagnose diabetes and has no relation to thyroid function.

Which Is a Laboratory Test That Measures the Thyroid Gland's