Definition of Tube, NG
Tube, NG: An NG (nasogastric) tube is one that is passed through the nose (via the nasopharynx and esophagus) down into the stomach.
An NG tube is a flexible tube made of rubber or plastic and has bidirectional potential. A nasogastric tube can thus be used to remove the contents of the stomach including air (to decompress the stomach) and small solid objects and fluid (e.g., to evacuate poison from the stomach). A nasogastric tube can also be used to instill liquids into the stomach (e.g., to feed the person).
The word "nasogastric" is a hybrid -- part Latin, part Greek. "Naso-" is a prefix that has to do with the nose and comes from the Latin "nasus" for nose or snout. "Gastric" comes from the Greek "gaster" meaning the paunch or belly. The term "nasogastric" was coined in 1942.
Last Editorial Review: 6/14/2012
Back to MedTerms online medical dictionary A-Z List
Need help identifying pills and medications?
- Allergic Skin Disorders
- Bacterial Skin Diseases
- Bites and Infestations
- Diseases of Pigment
- Fungal Skin Diseases
- Medical Anatomy and Illustrations
- Noncancerous, Precancerous & Cancerous Tumors
- Oral Health Conditions
- Papules, Scales, Plaques and Eruptions
- Scalp, Hair and Nails
- Sexually Transmitted Diseases (STDs)
- Vascular, Lymphatic and Systemic Conditions
- Viral Skin Diseases
- Additional Skin Conditions