Gastric suction is a procedure to empty the contents of your stomach.
Gastric lavage; Stomach pumping; Nasogastric tube suction; Bowel obstruction - suction
A tube is inserted through your nose or mouth, down the food pipe (esophagus), and into the stomach. Your throat may be numbed with medicine to reduce irritation and gagging caused by the tube.
Stomach contents can be removed using suction right away or after spraying water through the tube.
In an emergency, such as when a person has swallowed poison or is vomiting blood, no preparation is needed for gastric suction.
If gastric suction is being done for testing, your health care provider may ask you not to eat overnight or to stop taking certain medicines.
You may feel a gagging sensation as the tube is passed.
This test may be done to:
- Remove poisons, harmful materials, or excess medicines from the stomach
- Clean the stomach before an upper endoscopy (EGD) if you have been vomiting blood
- Collect stomach acid
- Relieve pressure if you have a blockage in the intestines
Holstege CP, Borek HA. Decontamination of the poisoned patient. In: Roberts JR, Custalow CB, Thomsen TW, eds. Roberts and Hedges' Clinical Procedures in Emergency Medicine and Acute Care. 7th ed. Philadelphia, PA: Elsevier; 2019:chap 42.
Meehan TJ. Approach to the poisoned patient. In: Walls RM, Hockberger RS, Gausche-Hill M, eds. Rosen's Emergency Medicine: Concepts and Clinical Practice. 9th ed. Philadelphia, PA: Elsevier; 2018:chap 139.
Pasricha PJ. Gastrointestinal endoscopy. In: Goldman L, Schafer AI, eds. Goldman-Cecil Medicine. 25th ed. Philadelphia, PA: Elsevier Saunders; 2016:chap 134.