An unprepared abdomen is an x-ray of the abdomen without a contrast medium. This exam is called "unprepared" because it requires no injection or prior intervention. It takes five to ten minutes. Three shots can be made depending on the suspected disorder: standing, lying down, and centered on the diaphragmatic domes. An unprepared abdomen x-ray is made ??in case of transit disorders or abdominal pain and can detect an obstruction, constipation, organ calcification or any gallstones or kidney stones.