I don't understand why people would put nasal gastric tube in. Say if you have an eyelash inside your eye, it's uncomfortable so you will pull it out, same theory for the tube in your nose and throat. It's better to adjust their diet like drinking thicken fluid, minced food with extra gravy.
I am a nurse in aged care ( in australia), we work alone side with allied health ( speech therapist, dietitian) to get the best possible care delivered to our clients.