Second, patients should be on an empty stomach for at least 6 hours before examination. If you check in that morning, you should fast after dinner the day before, and breakfast is free that day; If you check in the afternoon, you can eat light semi-liquid food for breakfast and fast at noon. Those who are seriously ill, weak and unable to take care of themselves after fasting should be injected with hypertonic glucose solution intravenously before examination.
Third, in order to eliminate the patient's nervousness, reduce gastric juice secretion and gastric peristalsis, expel bubbles in the stomach, and make the image clearer, if necessary, the doctor should give the patient sedatives, spasmolytics and defoamers 20-30 minutes before the examination. In this regard, patients should understand and cooperate.
Fourthly, in order to make the gastroscope pass through the pharynx smoothly, pharyngeal anesthetics are generally used before gastroscopy, and the main points of medication should be carried out according to the requirements of doctors. Use local anesthesia, limited to the throat and upper esophagus. Before using the above drugs, explain your drug allergy history to your doctor, that is, what drugs you were allergic to in the past. Local anesthesia is to spray 2% dicaine or 2% serum caine, and the patient opens his mouth and sounds "A". At this time, the soft palate and lingual palatal arch move up, and the base of the tongue moves down, so that the medicine is sprayed on the back of the tongue, throat and soft palate. After each spray, the patient swallows the medicine left in his mouth to anesthetize his throat. Paste is also used, which is contained in the mouth to make the medicine stay in the throat and naturally flow into the esophagus to play a local anesthetic role.
Patients and doctors should cooperate. Before the examination, the patient should urinate and empty his bladder. After entering the examination room, loosen the neckline and belt, take off the dentures and glasses, take the left lateral position, or switch to other positions as needed. After entering the mirror, don't bite the mirror with your teeth to avoid biting the plastic pipe of the mirror body. The body and head can't rotate, so as not to damage the mirror and hurt the internal organs. If there is discomfort, the patient can't bear it for a while, and can signal the operator (doctor or nurse) to take necessary measures.