- gastric lavage
- gastric suctioning
Stomach pumping is done to remove toxic substances that a person has accidentally or purposely swallowed.
Who is a candidate for the procedure?
Anyone who has swallowed a poisonous substance or an overdose of drugs is a candidate for stomach pumping. A person's stomach may be pumped if he or she refuses to take medication to cause vomiting.
Sometimes a person should not vomit, if certain types of poisons have been swallowed. In these cases, the person's stomach may be pumped. Stomach pumping can also be used to collect a sample of the material that was ingested.
How is the procedure performed?
Stomach pumping should be done as soon as possible after the person has swallowed the substance. This decreases the time the body is exposed to the poison. It also prevents drugs from being absorbed, if the person has taken an overdose.
If the person is unconscious or uncooperative, an endotracheal tube is inserted before the stomach is pumped. This is a tube that protects the airway, and prevents the person from breathing the stomach fluids into the lungs.
The person is placed on the left side, with the head lowered. A lubricated stomach tube is gently inserted through the mouth, into the esophagus, and down to the stomach. The contents of the stomach are then suctioned out through the tube. The stomach can then be washed out with lukewarm water or salt water. This is done repeatedly until the fluids that come out of the stomach are clear.
Depending on what was swallowed, the person may be given activated charcoal after the stomach is pumped. The charcoal absorbs any drugs or poisons that may still be in the stomach. Activated charcoal can be given with a cathartic, which is a medication that speeds the emptying of the intestines.
Scientific American Medicine
Tierney, Lawrence, editor, "Current Medical Diagnosis and Treatment, 39th edition", 2000
Clinical Toxicology Review Vol. 19, No. 11, August 1997