<<Disclaimer: Verify this information before applying it to your situation.>> I had asked about the risk of having iodine injection with a CAT scan. This was ordered for me after finding suspicion in a chest X-ray. The general consensus in the replies I received was that it was something to avoid if possible. As Hilary pointed out, there is a huge difference in the tiny iodine one accepts with a multivitamin compared to that of the injection given for an X-ray. Others pointed out the horrors of an actual allergic reaction some get from iodine. Anyway, my endocrinologist and I decided no iodine and had the CAT scan done without. The good news came today that it was negative. Thanks to the folk who responded about this. When doctors don't know, it's good to have this more informed group to rely on. Thanks! --Ron in Elmira NY * Please carefully compose your subject lines in all posts *