Hi,may I answer your health queries right now ?  Please type your query here... Hi I am going in for  a HIDA scan tomorrow and forgot to mention to my doctor that I am allergic to shellfish etc ... is that a problem?  I know I can not have contrast for a CT scan because of this, but wondering if its the same for a HIDA scan. Thanks!
Hi and welcome to Chat Doctor. Thank you for your query. I am Chat Doctor and I will try to help you as much as I can.  No, this is not problem since contrast that is used for the scan is not related to allergens in shellfish so you don't have to be worried. If you have iodine allergy this may be problematic for some scans. I hope I have answered you query. If you have any further questions you can contact us. Kindly regards. Wish you a good health.