Although the recent research concluded that naso-gastric tube (NGT) is no longer necessary for elective abdominal surgery, up till now a lot of surgeon are still using it. To clear this doubt, a randomized controlled trial in Dept. of Surgery Dr. Kariadi Hospital/Diponegoro Medical Faculty, Semarang has been done. Forty eight elective abdominal surgery patients randomized in two group; nasogast…