In the radioactive iodine uptake (RAIU) test, you swallow a small amount of radioactive iodine before you receive a scan. The test reveals how well your thyroid is functioning. The thyroid is a gland ...
Electric thrusters that use iodine as a propellant could soon find their way onto lots of spacecraft. When you purchase through links on our site, we may earn an affiliate commission. Here’s how it ...