I recommend swallowing the PillCam instead of having colonoscopy -- you have electrodes for
camera attached, swallow a pill, go home and wait 10 hours or so, then you bring the
camera back and flush the pill :-)
I swallowed the PillCam ESO to check my esophogas for varices... had none. I would recommend this instead of endoscopy down the throat. I had electrodes for camera attached, swallowed the pill, tech slowly elevated back of exam table and after 10 minutes I went home.