Precautions for Electronic Gastroendoscopy and Colonoscope Examinations

Special considerations for electronic gastroendoscopy and colonoscope

  • Before colonoscope, related examinations such as ECG, coagulation system, electrolytes, hepatitis B two-pair-half, and liver function should be performed.

  • It is better to have a semi-liquid diet one to two days before the examination, such as congee, noodles, egg custard, tofu and other non-solid foods, and avoid foods that are undigested and affect the examination such as leeks and tomatoes.

  • The night before the examination, take 100g of polyethylene glycol 4000 powder (1 box), dissolved in 1000ml of warm water, drink within half an hour, and continue to take 3 bottles of dimethyl silicone oil powder + 60ml warm water. Note: no food should be consumed after 24:00 that night. Polyethylene glycol is a laxative, which can cause individual differences in bowel movements within 2-8 hours.

  • Starting from 06:00 in the morning, take 100ml of 50% magnesium sulfate orally, and drink 1200ml of warm water at the same time; they can also be mixed for consumption. Note: the medicine must be taken within half an hour. Attention: elderly and weak patients who cannot tolerate hunger for a long time can drink a cup of sugar water before this; patients with "hypertension" should continue to take antihypertensive drugs before taking magnesium sulfate.

  • Patients who need to have gastroendoscopy should take a small amount of streptokinase granules with warm water orally 10 minutes before the examination. Note: no food or water should be consumed after all the medicines have been taken until yellow water-like excreta are discharged. If symptoms such as nausea, vomiting, dizziness, and cold sweats occur, immediately lie down and rest, and inform the doctor or nurse in time. Patients who are not clean after defecation may need to clean their intestines again before colonoscope if necessary.

  • Patients with hypertension and diabetes should take antihypertensive and hypoglycemic drugs as directed by their doctors.

  • Patients must be accompanied when coming to the hospital for examination.

  • Please bring report sheets such as ECG, coagulation system, electrolytes, hepatitis B two-pair-half, and liver function examinations.

  • Please do not wear metal jewelry such as necklaces and watches when coming to the hospital for examination on that day.

  • Patients who take anticoagulant drugs such as aspirin and clopidogrel sulfate for a long time and are considered to have colon polyps should stop taking the drugs for a week before the colonoscope to prevent the risk of bleeding after polyp removal.

  • Patients who are ready for colonoscope should wait in line in the endoscopy room in order, and follow the arrangement of medical staff.

After electronic gastroendoscopy and colonoscope, pay attention to the following

  • After biopsy or polypectomy, do not engage in vigorous activities within three to seven days, rest in bed, eat light and liquid diet (severely fasting for 72 hours), and receive intravenous infusion and other treatments.

  • After colonoscope, abdominal bloating discomfort may occur because air accumulates in the intestinal cavity, which will gradually fade away in a few hours; tell the doctor in time if the abdominal bloating is significant.

  • If continuous abdominal pain or significant bloody stools occur, keep calm, rest in bed, and inform the doctor immediately.

  • Within 24 hours after the examination, do not drink alcohol, drive a motor vehicle, operate machinery or engage in high-altitude operations.

  • Generally, it takes 7 working days to get the pathological report of the specimen, so please be patient and wait for the report.

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