I have had barium studies in the morning, not eaten anything for the rest of the day (the barium makes me not feel well, go figure). Then been woken up in the middle of the night with barium on my nightshirt. So that is something like 18 to 20 hours later. I would call your doctor to at least inform them. They might not want to do anything, but they might. Its always better to be safe than sorry.
CD 19 years offically, 29 unofficially. 3 resections '93, '95 '97
Symptoms constantly but all tests show only minor ulcerations. Currently having multiple episodes of gastritis with no known cause.
Prednisone, 6MP,Prevacid, B12 shots, Bentyl, Xifaxan.....