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Hida Scan is used to examine gallbladder and bile ducts. A radioactive material injected to your vein. It goes to the liver and from there it goes to the hepatic duct and from hepatic ducts to the gallbladder, and from there to the common bile duct; then to the small bowel in normal person. Pictures are taken by nuclear scanner to find out if there is an abnormality. Please check the link for more information:
I am supposed to be scheduled for a hydro-scan by my gastroenterologist what is it and what does it do?