Why normal saline for a ng tube flush?

Normal saline is commonly used for flushing a nasogastric (NG) tube because it is isotonic, which helps maintain fluid balance and prevents irritation to the gastric mucosa. Its sterile nature ensures that it does not introduce bacteria into the gastrointestinal tract. Additionally, normal saline effectively clears the tube, preventing clogging and ensuring that medications or feedings can flow properly through the NG tube.