Plain films, ? CT: A colon obstruction will be a surgical emergency, and is usually diagnosed by plain film and maybe a retrograde dye study, e.g. barium enema. Small bowel obstruction can be seen on plain films, but in many cases a CT scan is ordered. No oral dye studies are needed. In a non-operated abdomen a small bowel obstruction needs exploration. Observation with NG can resolve SBO due to adhesions. Good luck
Answered 7/6/2014
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