Conservative treatment of intestinal obstruction is clinically 3 days of conservative treatment, if the symptoms have not significantly improved to consider surgical treatment. Now that it has been 12 days of conservative treatment, it is estimated that the likelihood of subsequent recanalization of the bowel obstruction is relatively low, and CT evaluation is needed to understand the cause of the bowel obstruction and to find the obvious point of obstruction. A good test to determine the need for surgical treatment is to take three oral doses of pantethine glucosamine, a contrast agent that can be visualized on CT and can show the contours of the bowel. The CT is repeated after the oral contrast, and if the contrast has not passed the site of the obstruction after 12-24 hours, because pantethine is an aqueous agent, and this fails to pass the site of the obstruction indicating that the stenosis of the obstruction is significant, surgery to relieve the obstruction is recommended.