What are the precautions for colonoscopy?

Colonoscopy refers to the lower gastrointestinal endoscopy, also known as colonoscopy or sigmoidoscopy, which is a means to help doctors guide the lower gastrointestinal mucosa. Colonoscopy is a flexible fiber hose with light source and miniature electronic camera at the end, which is about 140CM long and slowly enters the large intestine from the anus. Colonoscopy can be used to screen asymptomatic patients, help diagnose unexplained abdominal pain, rectal bleeding or changes in defecation habits, and find inflammation, infection, ulcers, intestinal polyps, tumors or other problems in the lower digestive tract.

Intestinal preparation is needed before colonoscopy. Poor intestinal preparation will reduce the safety of colonoscopy and the detection rate of various intestinal diseases. Precautions before inspection mainly include:

1, food preparation. Because the seeds of stems, leaves and fruits of vegetables are difficult to digest, they will stick to the intestines and it is difficult to be cleaned. Therefore, two to three days before colonoscopy, we should eat semi-liquid food with low residue and avoid fruits and dried fruits with seeds. Eat a liquid diet the day before the examination, and avoid eating rice, steamed bread, fruits and vegetables. Fasting is required on the day of examination.

2. Use drainage agent correctly. Compound polyethylene glycol electrolyte powder (PEG for short) is recognized as the best preparation for intestinal preparation at present. In addition, mannitol, magnesium sulfate, sodium phosphate and other preparations are also commonly used in intestinal preparation. Taking PEG as an example, PEG preparation was added with 2 heated water and stirred evenly, and mixed with 4? Take it in five hours. Take 1 liter within 1 hour, then take 1 liter within 0.5 hour, or once every1hour? /kloc-take 250 ml orally for 0/5 minutes and finish it in two hours. For patients with constipation and unsatisfactory clearance in the past, 3 liters of PEG can be prepared and taken 12 hours before examination 1 liter, 4? Take the remaining 2 liters after 6 hours. Until the stool becomes watery.

3. Evaluate your physical condition. Please ask a doctor to evaluate your physical condition, age, constitution, whether you have hypertension, heart disease and other diseases, and whether you have bloody stool and unexplained abdominal pain recently. Also evaluate whether you are dizzy at present. Symptoms such as vomiting and dehydration.

4. Accompanied by family. Be accompanied by family members during colonoscopy, pay attention to safety when going to the toilet, and patients with hypertension need to prepare antihypertensive drugs to avoid accidents; Patients with hypoglycemia should prepare hard fruit candy before examination to prevent hypoglycemia.

After colonoscopy, you need to pay attention to rest and diet to see if there is any abnormality. Matters needing attention after inspection mainly include:

1, you can exercise properly after colonoscopy, but you can't exercise vigorously. Pay attention to rest.

2. After the examination, there will be slight abdominal distension, so you can move around and defecate properly to promote exhaust, which can be relieved by exhausting abdominal distension.

3, 2 hours after the general examination, you can eat and drink water, such as pathological biopsy, and eat liquid digestible food after 4 hours.

4. Return with your family, avoid driving alone, take a proper rest to recover your strength, and then carry out your daily work.

5, pay attention to observe whether there are symptoms such as bloody stool, such as diarrhea, severe abdominal pain, please return in time.