Checking the stomach to drink the liquid, common barium, lidocaine gel and so on.
If you do gastrography to observe the stomach and the stomach wall, most of them are oral barium sulfate, barium sulfate solution is a white mixture, relatively high density, insoluble in water and lipids, mostly in the intestine is not absorbed, and with the intestinal contents out of the body.
If you do gastroscopy, you may also drink lidocaine gel, which is a local anesthetic drug that can anesthetize the mucous membranes of the throat, reduce the irritation of gastroscopy, avoid the occurrence of laryngospasm, and also lubricate the role of easy operation.
The liquid often drunk during the examination of the stomach is commonly found in these two types, and you can consult the doctor operating in the examination in detail as to which liquid you are drinking.