CT Scan
I had an appointment to go for a CT scan of my stomach, this involved having to drink a flavoured drink then waiting for some time before going into the main room and asked to lie on a couch. I was then positioned and moved around in a doughnut shaped piece of machinery that actually did the scan. After a while I was injected with iodine and warned that I would get a warm feeling and it would feel as if I had wet myself. We it certainly did.
The whole procedure took about 20 mins and I was free to go home afterwards. The results came back perfectly normal.
