How does colonoscopy work? What should patients pay attention to when doing colonoscopy?

Generally, it is necessary to check instruments and diseases in hospitals. For example, when the stomach problem can't be seen directly, you need to use a stomach examination instrument. Gastroscope is one of them, and colonoscopy actually has colonoscopy, but it may be more troublesome than gastroscope. So, what should patients pay attention to when doing colonoscopy?

1, before inspection

1. Drink plenty of water and eat liquid or semi-liquid foods such as porridge, soup and wonton. Do not eat coarse fiber food, such as celery, or food with seeds, such as watermelon and pitaya.

2. Drink laxatives. Take it the night before examination or 4-6 hours before examination. Drink 250 ml every 10- 15 minutes until the stool is transparent and watery, with no solids.

3, anesthesia preparation. Patients undergoing painless enteroscopy need intravenous anesthesia, so they can't eat or drink water 4 hours before anesthesia.

Step 2 be inspected

1, the length of colonoscopy is generally 20 minutes, and the time required for awakening from painless colonoscopy anesthesia varies from person to person.

2. Lie down to the left, show your ass, tuck in your abdomen and curl your legs. Painless colonoscopy to start intravenous anesthesia.

3, the doctor check the rectum and anus, do a good job of lubrication, after reaching the ileocecal department began to retreat from the mirror observation, until the inspection is completed.

3. After inspection

1, you can eat and drink after ordinary colonoscopy, and patients with painless colonoscopy and biopsy can eat and drink normally after 4 hours.

2. You can't drive or work high on the second day after painless colonoscopy.

4. Tips

Before colonoscopy, if there are still solids in the feces and the feces are yellow, you should inform the doctor in time and take remedial measures. In addition, when suspicious lesions appear in the intestine, pathological biopsy is needed again, but this does not mean that you have cancer, so don't worry too much.

5, do a gastrointestinal endoscopy.

1.General population over 50 years old. Both men and women should have gastrointestinal endoscopy. If there are positive findings (ulcers, polyps, etc.). ), should be reviewed regularly after treatment.

2. People with family history of esophageal cancer, gastric cancer and intestinal cancer can advance the age of initial examination to 40 or even 35 years old.

3. Have bad living habits: smoking, drinking, eating irregularly or overeating or eating big fish and meat, like to eat pickled food and barbecue, have high work pressure and often stay up late.

4. People with digestive tract discomfort, such as stomach discomfort, can be manifested as upper abdominal pain, lower abdominal pain, acid regurgitation, belching and fullness. Intestinal discomfort can be manifested as lower abdominal pain, changes in defecation habits and characteristics, such as defecation once to many times a day, or constipation, loose stool, bloody stool, runny nose and bloody stool.

5. During normal physical examination, CEA, CA 199 and other digestive tract tumor markers were found to be elevated, so gastrointestinal endoscopy should be done as soon as possible for further examination.