What do the marks on nasogastric tube indicate?

The marks on a nasogastric tube indicate the distance from the tip of the tube to the nares. This is important information because it helps to ensure that the tube is inserted to the correct depth. The marks are usually in centimeters, and they are typically located at 5 cm intervals.

The correct placement of a nasogastric tube is essential for its proper function. If the tube is inserted too far, it can cause injury to the stomach or intestines. If the tube is not inserted far enough, it may not be able to effectively deliver food or medication.

The marks on a nasogastric tube can also be used to monitor the movement of the tube over time. If the tube is migrating, it may need to be repositioned or replaced.

It's important to follow the manufacturer's instructions for inserting and using a nasogastric tube. This will help to ensure that the tube is used safely and effectively.