specialist then changed his mind and said first he was gonna do this test where I take a pill and then 5 days later they do a xray. HEs thinkin I have colonic inertia. Can you please tell me something about this
There is a list of various radiological tests at:
(http://www.stocktonmri.com/Nuclear%20Medicine.htm#hepatobiliary)
Why don't you call the Doctor's office and speak with the Nurse or Receptionist and ask her for the full name of the test. Once you have that, you can do some research to see what you are in for.