- Urine test: This is the simplest and fastest test. You’re able to get results in minutes, but it’s not as accurate as some of the other iodine tests.
- Blood test: This is a simple and accurate test for iodine levels in the body. However, it takes more time to read than a urine test.
- Iodine patch test: The iodine patch test is a test where doctors paint a patch of iodine on your skin and check how it looks 24 hours later. For those who are not iodine deficient, the patch fades no sooner than 24 hours. But a deficiency will likely cause the iodine to be absorbed into the skin more quickly. This test is not the most accurate, but it’s inexpensive and relatively quick.
- Iodine loading test: This test measures how much iodine you excrete in your urine over a 24-hour period. It’s not the fastest test; nor is it the most convenient. (You need to collect every urine sample you have in a 24-hour period.) But it’s quite accurate.
HOW TO TEST THE BODY’S IODINE LEVELS-DEFICIENCY – Patriotic Strong Lugol’s Iodide