结肠镜检查

A colonoscopy is a test used to look at the lining of the bowel (colon or large intestine) using a colonscope – a long, soft flexible tube containing a tiny video camera and a light.

Why is the test done?

Reasons for having a colonoscopy include:

寻找结肠和直肠癌的早期迹象。
To look for causes of tummy pain, bleeding from the bottom (rectum), low iron (anaemia) or weight loss.
研究肠习惯无法解释的变化。

Preparing for a colonoscopy

To be able to see the inside of the bowel clearly with the colonoscope, the bowel needs to be completely empty. In the days leading up to your colonsocopy, you will be on a special diet and will be given some laxatives (medicine to make you go to the toilet) to take to help clean out your bowel.

确保您知道需要什么，并仔细遵循说明，因为肠子需要完全清洁该过程。阅读您已经收到的小册子或字母，如果您不确定该怎么做，请提出问题。

Some medications can interfere with the preparation for a colonoscopy. When preparing for a colonoscopy, tell you doctor or nurse what medications you are taking.

结肠镜检查发生了什么？

During a colonoscopy, a specially trained doctor uses a colonoscope to examine the lining of your bowel. A colonoscope is a long, thin flexible tube with a tiny camera and a light on the end.

Before the procedure, your doctor will discuss what is going to happen with you and you will have a chance to ask questions. You will need to change into a hospital gown.

When you are ready, you will be asked to lie on your side or back while the doctor gently inserts the colonoscope into your back passage and slowly moves it along the inside of your bowel.

The video camera on the colonoscope streams video images to a TV screen, allowing the doctor to see the lining of your bowel. Your doctor will examine the lining again as they slowly withdraw the colonoscope.

在某些情况下，医生不能将结肠镜穿过整个结肠。您的医生会让您知道您是否需要其他测试。

结肠镜检查中还会发生什么？

在结肠镜检查期间，医生还可以进行活检（肠壁的小样本）或去除任何polyps(abnormal growths in the bowel lining that are usually noncancerous) they see. Removal of polyps reduces the risk of cancer developing.

结肠镜检查受伤吗？

我们ually a colonoscopy is a pain-free procedure, but you might feel pressure, bloating or cramping during the procedure. Your doctor may give you a sedative or painkiller to help you relax and reduce any discomfort.

结肠镜检查需要多长时间？

该过程本身通常需要少于45分钟，尽管您应该计划2至3个小时以进行等待，准备和恢复。您需要留在医院，直到镇静剂的大部分影响消失为止。

What happens after a colonoscopy?

If you have been given sedatives during the procedure, someone must drive you home and stay with you. Even if you feel alert after the procedure, your judgment and reflexes could be impaired for the rest of the day.

You might feel some cramping or bloating (gas) because of the air introduced into the colon during the examination. This should ease when you pass gas.

You should be able to eat after the examination, but your doctor might advise you to eat a special diet and not do vigorous exercise, especially if you have had polyps removed.