- Aug 30, 2011
Good Morning! I am 1 week post RAI for grave's disease. Prior to this, I was feeling pretty...

Radioactive iodine uptake (RAIU) is a test of thyroid function. It measures how much radioactive iodine is taken up by the thyroid gland in a given time period.
See also:Thyroid scan
Iodine uptake test; RAIU