nasogastric tube

 Nasogastric (NG) Tube

NG tube known as Ryle's tube. This tube used for delivering medication and nutrition directly to stomach and removing substance from stomach.

NG tube is inserted through the nose, down the throat and esophagus, and then into the stomach. 

Ryle's tube Sizes and Color Codes

Color.  Sizes (french)

Green ;6

Blue; 8

Black; 10

White; 12

Sea Green; 14

Orange; 16

Red;18

Yellow;20

NG tube available in length 90 to 165 cm with marks at 45, 55, 65 and 75 cm from distal end (nose insertion length).

Adult; 16-18fr

Children; 10-14fr

Infant; 4-10fr