1. 
   NG Tube
   A tube passed down through the nostril. It goes down into the stomach, and in this case is used to remove excess bile and fluid from the stomach to reduce it.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
2. 
   NG tube
   NG tube: See: Nasogastric tube.
   Found op http://www.medterms.com/script/main/art.html?articlekey=9351
   
   
3. 
   NG Tube
   A small tube that is inserted through the nose, extending through the esophagus, and into the stomach. The tube ismade of rubber or plastic and is used to remove air from the stomach, administer medication or give food. Synonym(s): Nasogastric Tube
   Found op http://www.pregnology.com/AZ/N/2
   
   
4. 
   NG tube
   A tube that is inserted through the nose, down the throat and esophagus, and into the stomach. It can be used to give drugs, liquids, and liquid food, or used to remove substances from the stomach. Giving food through an NG tube is a type of enteral nutrition. Also called gastric feeding tube and na...
   Found op http://www.cancer.gov/dictionary?expand=N
   
   

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