This medical how-to video demonstrates the simple steps for inserting a nasogastric tube. A nasogastric tube is more commonly known as a NG. Follow along and learn the basic protocol for doing this procedure. To do a NG tube insertion you will need 14-16 French gauge nasogastric tubing, water soluble lubricating jelly, catheter tip syringe, suction drainage system, and hypoalergenic tape. For your patient, you should have ready a cup of water with a straw, emesis basin, and a towel.