2024年7月12日 · A thyroid uptake test is also known as a radioactive iodine uptake test (RAIU). It’s a nuclear medicine test that measures how much radioactive iodine your thyroid absorbs over a given time. A healthcare provider places a probe over your thyroid to measure the amount of radioactivity in your gland.

2022年7月21日 · A radioactive iodine uptake test shows how well your thyroid functions. Discover how the RAIU compares to a thyroid scan and what you should do afterward.

2025年3月10日 · There are no fewer than 6 different ways that you can test for iodine in your body and each one has pros and cons and none are 100% accurate. For this reason, we need to take a deep dive into iodine testing to help you figure out which test would be …

Radioactive Iodine Uptake, or RAIU, is a test of thyroid function. The test measures the amount of radioactive iodine (taken by mouth) that accumulates in the thyroid gland. See also "thyroid scan." Alternative Names: Iodine uptake test; RAIU.

2025年1月9日 · A radioactive iodine uptake test, or RAIU, is typically performed with a thyroid scan to help determine thyroid health and functioning. The test helps your healthcare provider see how much radioactive iodine your thyroid has absorbed over a certain time period, usually 6 or 24 hours after taking radioactive iodine.

2023年7月31日 · The radioactive iodine uptake (RAIU) test is used to quantitate the overall metabolism and kinetics of iodine in the thyroid gland by measuring how much orally ingested iodide is concentrated in the thyroid gland. Iodine-123 (I …

2024年2月24日 · What Is a Radioactive Iodine Uptake Test? A radioactive iodine uptake (RAIU) tests the function of your thyroid gland, which helps regulate your metabolism. It works by measuring how much...

Thyroid Function Tests. Thyroid function tests are important for checking iodine levels. They look at thyroid-stimulating hormone (TSH), free triiodothyronine (Free T3), and free thyroxine (Free T4). High TSH levels mean your thyroid might not have enough iodine. These tests show how well your thyroid works. They help figure out if you have ...

2022年9月23日 · Iodine is an essential ingredient used by the thyroid cells to make thyroid hormones. Since thyroid cells use iodine, radioactive iodine can be used to both diagnose and treat thyroid problems. WHAT IS RADIOACTIVE IODINE (RAI)? Iodine can be made into two radioactive forms that are commonly used in patients with thyroid problems:

Radioactive iodine uptake (RAIU) tests thyroid function. It measures how much radioactive iodine is taken up by your thyroid gland in a certain time period. A similar test is the thyroid scan. The 2 tests are commonly performed together, but they can be done separately.