What happens when the test is performed?
- You need to have an IV (intravenous) line placed in a vein
in your arm or hand. In the x-ray department, you lie on your
back on a table and an x-ray camera takes some initial pictures
from above. X-ray dye is injected through the IV. You might feel
some warm tingling in your arm when the dye is injected. During
the next 30-60 minutes, a new x-ray is taken every few minutes.
These x-rays show the dye in different stages as it moves through
your kidneys and ureters and into your bladder. Each time an
x-ray is taken, you are asked to hold your breath. Before the
last x-ray, you are sent to a bathroom to empty your bladder.