My husband just had a HIDA scan done today to check his gallbladder function. He was there for a little under 2 hours...all lying flat on his back on a board. They position the camera directly above your abdomen. They had warned us that it could take up to four hours (if the dye didn't move all the way through properly).
They injected the radioactive stuff, watched as it slowly progressed through his liver, gallbladder, bile ducts & intestine. Then they gave him something else to stimulate the gallbladder. This did cause discomfort--causes the gallbaldder to contract (the pain was like he has been having for the past week, hence the gallbladder test). The tech took notes about where he felt pain & when, if he felt nauseated, etc.
Fortunately, or unfortunately his appears to be in working order. We were told if it is working properly, the gallbladder should look about half as big in the last pics as it did in the first pics.
So, he is lying here, still undiagnosed, in much pain (when he doesn't take his percocet), missing more work...very frustrating.
I had my gallbladder removed about 6 years ago. My gallstones were very apparent on the ultrasound though (thankfully). Recovery was pretty fast. I felt good after a few days and great about a week later. I don't think I've had any real complications or changes after the surgery--at least that I have noticed. Although I got pregnant a few weeks after the surgery, so maybe there was some bodily adjustments and I blamed them on the pregnancy instead.
good luck!