I am getting a ct scan what should i expect?

Pretty easy: As in the picture, you will lie on a table which will then slide you into and out of the scanner during the scan. The scanner loos kind of like a big donut. Not nearly as long and narrow as an MRI scanner. Depending on the scan you may be asked to drink barium oral contrast before the scan to opacify the bowel lumen. Also, you may or may not have IV contrast injected during the scan.