What is the most common reason for inserting a nasogastric tube after abdominal surgery?

• A. Lavage
• B. Decompression
• C. Instillation
• D. Gavage

Answer: (B)

After abdominal surgery, the main goal of placing a nasogastric tube is to decompress the stomach. This relief of pressure helps prevent gastric and intestinal distention as the bowel recovers from anesthesia and any ileus that may develop. By removing air, secretions, and blood, the tube reduces nausea, vomiting, and the risk of aspiration, and it protects surgical sites from pressure and disruption while healing.

Lavage would be used to wash out the stomach, not the usual post-op goal. Instillation would introduce fluids or meds into the stomach, which isn’t the primary purpose after abdominal surgery. Gavage is used for feeding, which may be needed later but isn’t the typical immediate reason for NG tube placement postoperatively.