Which method is used to verify enteral tube placement?

• A. X-ray confirmation
• B. Air instillation check with auscultation
• C. pH testing of aspirate
• D. Capnography

Answer: (B)

Quick bedside verification of enteral tube placement relies on a simple, noninvasive check using air insufflation and auscultation. Injecting a small amount of air through the tube while listening with a stethoscope over the stomach, you look for a clear gurgling or swooshing sound. That sound suggests the tube tip is in the stomach rather than the airway, providing an immediate indication of gastric placement. This approach is fast, requires minimal equipment, and can be done right away at the bedside, which is why it’s often taught as an initial verification step.

However, it isn’t foolproof. Sounds can be misleading if the tube is misdirected or if patient factors interfere with interpretation, so relying on this method alone can risk misplacement. Because of that, imaging confirmation—typically an X-ray—is the definitive method to confirm initial tube position before use. In practice, air auscultation can be used as a quick initial check, but it should be followed by more reliable methods to ensure correct placement.