CGRN GI/Endoscopy Practice Exam

Answer - B - After the tube has been inserted into the stomach, its movement into the duodenum is first facilitated by having the client lie on the right side for 2 hours, then on the back with head elevated for 2 hours, and finally on the left side for 2 hours. After the tube has passed the pylorus (this is usually checked by X-ray), ambulating the client will help move the tube to the point of obstruction. After positioning and ambulation, the physician or the nurse may advance the tube 1 to 4 inches at specified time intervals (Choice A) to provide slack for peristalsis action. Remaining quiet or flat in bed (Choices C and D) will not facilitate the advancement of the tube either through the pylorus or through the small intestine.