Gastric Suction Test – Indications, Procedure, Results
Gastric suction is a procedure to empty the contents of your stomach.
How the Test is Performed
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.
How to Prepare for the Test
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.
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 medicines from the stomach
- Clean the stomach before an upper endoscopy (Â EGDÂ ) if you have been vomiting blood
- Collect stomach acid
- Relieve pressure if you have a blockage in the intestines
Risks
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

Dr. MD Harun Ar Rashid, FCPS, MD, PhD, is a highly respected medical specialist celebrated for his exceptional clinical expertise and unwavering commitment to patient care. With advanced qualifications including FCPS, MD, and PhD, he integrates cutting-edge research with a compassionate approach to medicine, ensuring that every patient receives personalized and effective treatment. His extensive training and hands-on experience enable him to diagnose complex conditions accurately and develop innovative treatment strategies tailored to individual needs. In addition to his clinical practice, Dr. Harun Ar Rashid is dedicated to medical education and community outreach, often participating in initiatives that promote health awareness and advance medical knowledge. His career is a testament to the high standards represented by his credentials, and he continues to contribute significantly to his field, driving improvements in both patient outcomes and healthcare practices.