这是什么？
A colonoscopy uses a long, snake like tube with a light and camera to look inside the large bowel. It is inserted into the rectum and can take samples of tissue or growths that are found.
A doctor may suggest a colonoscopy if you have bowel problems or symptoms, or if you have done a bowel cancer screening test which has returned a positive result.
手术前需要做些什么？
There is a lot to prepare for when having a colonoscopy. A nurse will give you information on how to prepare. This includes:
Diet - there are certain things you can and cannot eat. You must only have clear liquids the day before your procedure.
药物 - you will be given medication that works like a strong laxative. It will remove all the solid waste from your bowel and cause diarrhea. You should stay close to a toilet when you take the medication.
Fluids - the medication can make you feel dehydrated. The nurse will give you information on how to keep your fluids up.
将会发生什么？
You will be given a light anaesthetic for this procedure. The procedure takes 20-30 minutes to complete. Most patients can go home after it is finished.
之后我能期待什么？
After the procedure, you can eat and drink what feels comfortable. You are encouraged to drink lots of water and try to eat a well-balanced diet. You should also try to walk and be mobile. If samples were taken, the results will not be ready by the time you leave. These will be discussed at your follow up appointment. Complications from a colonoscopy are uncommon.
我什么时候应该担心？
Call your GP or Emergency Department right away if you have:
- Severe pain or cramping in your stomach or a hard belly
- Trouble passing wind or a bowel motion
- Fever, dizziness or vomiting
- Frequent or severe bloody bowel motions
- More than one tablespoon of bleeding or rectal bleeding that will not stop