This offers an escape route for gas and fluid that may have accumulated within the stomach.  NG intubation is also important for administering laxatives or fluids.  Bowel secretes fluid into its lumen in response to distension, thus the volume of accumulated fluid relieved from the stomach via stomach tube can be helpful in locating a lesion.  The nearer the obstruction to the stomach, the faster the fluid will accumulate.  If it re-accumulates rapidly, the problem is nearer the pylorus than in cases where re-accumulation doesn’t occur at all or occurs very slowly.

It is essential to create a siphon in order to be able to remove fluid through the stomach tube.  This is done by filling the tube with water and aspirating gently with a stomach pump or syringe.  Repeated efforts to create a siphon and to move the tube in and out are essential since feed material from the stomach may obstruct the end of the tube.  The volume and pH of the gastric fluid should be noted.  One should be aware that while not a surgical condition, small intestinal enteritis may produce large volumes of fluid.









Copyright 1999-2001
New Bolton Center Field Service Department
Students:  Keith Javic - Class of 2003, C. Nikki Conroy - Class of 2003