Gastric suction

Answer 1

Definition

Gastric suction is a procedure that empties the contents of the stomach. It may be done for tests, or to remove materials such as poisons.

Alternative Names

Gastric lavage; Stomach pumping; Nasogastric tube suction

How the test is performed

A tube is inserted through the nose or mouth, down the food pipe (esophagus), and into the stomach. Sometimes you may get a numbing medicine to reduce irritation and gagging as the tube is being inserted.

Stomach contents can be removed using suction right away, or after spraying water through the tube.

How to prepare for the test

In an emergency, such as when a patient has swallowed poison or is vomiting blood, no preparation is needed for gastric suction. When it is done for testing, your doctor may ask you not to eat overnight, or to stop taking certain medications.

How the test will feel

You may feel a gagging sensation as the tube is passed.

Why the test is performed

This test may be performed for several different reasons, including:

• Removing poisons, toxic materials, or overdosed medications from the stomach
• Cleaning the stomach before an upper endoscopy (EGD) in someone who has been vomiting blood
• Collecting stomach acid for tests
• Relieving pressure in someone with a blockage in the intestines

What the risks are

There is a very small risk of the tube being accidentally placed into the airway instead of the esophagus.

Other small risks include the following:

• Aspiration of gastric contents
• Perforation of the esophagus
• Minor bleeding

References

Greene S, Harris C, Singer J. Gastrointestinal decontamination of the poisoned patient. Pediatr Emerg Care. 2008;24:176-178.

Answer 2

Definition

Gastric suction is a procedure to empty the contents of your stomach.

Alternative Names

Gastric lavage; Stomach pumping; Nasogastric tube suction

How the test is performed

A tube is inserted through the nose or mouth, down the food pipe (esophagus), and into the stomach. Sometimes you may be given a numbing 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.

How to prepare for the test

In an emergency, such as when a patient has swallowed poison or is vomiting blood, no preparation is needed for gastric suction.

If gastric suction is being done for testing, your doctor may ask you not to eat overnight or to stop taking certain medications.

How the test will feel

You may feel a gagging sensation as the tube is passed.

Why the test is performed

This test may be done to:

• Remove poisons, harmful materials, or excess medications 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

What the risks are

Risks may include:

• Breathing in contents from the stomach (this is called aspiration)
• Hole (perforation) in the esophagus
• Tube may be placed into the airway instead of the esophagus
• Minor bleeding

References

Greene S, Harris C, Singer J. Gastrointestinal decontamination of the poisoned patient. Pediatr Emerg Care. 2008;24:176-178.

Reviewed By

Review Date: 11/01/2010

Todd Eisner, MD, Private practice specializing in Gastroenterology, Boca Raton, FL. Clinical Instructor, Florida Atlantic University School of Medicine. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, A.D.A.M., Inc.