No barrium seen in two "small" movements since drinking it 51 hrs. Ago. Where is it/dangerous? I have 4th stage kidney disease.

Barium and kidneys. barium sulfate which is used in medical imaging procedures is not known to cause renal effects. see http://www.nlm.nih.gov/medlineplus/druginfo/meds/a606010.html Stool after barium may be light yellow. Since you have stage IV renal disease discuss with your renal doctor how much fluid you can have and use of laxative to induce a bowel movement, as you have to be careful about electrolytes.