What imaging technique is used to confirm the placement of a nasogastric (NG) tube?

The correct imaging technique used to confirm the placement of a nasogastric (NG) tube is fluoroscopy. Fluoroscopy provides real-time imaging that allows healthcare providers to visualize the passage of the NG tube through the gastrointestinal tract. This dynamic imaging capability is invaluable for ensuring that the tube is properly positioned within the stomach and that there are no complications, such as misplacement into the lungs, which could lead to aspiration and potential respiratory distress.

While X-rays can also be used to confirm NG tube placement by providing static images of the tube's location, fluoroscopy offers more immediate feedback and guidance during the placement process. Therefore, it is often preferred in clinical settings where quick assessment of the tube’s position is necessary. Other imaging methods, such as ultrasound or CT scans, are not typically used for this specific purpose due to their limitations in real-time imaging or the invasiveness associated with obtaining detailed cross-sectional images.