What is a colonoscopy?

Look inside colon. You are sedated (very sleepy, but still breathing on your own). The endoscopist places an instrument through your anus and then passes it into the colon to carefully exam the colon for polyps, cancer, etc. If any abnormalities are found a biopsy may be done. Typically, it is painless - the only bother is cleaning out your bowels beforehand and even that's not so bad.
Look in the colon. A flexible camera is placed in the rectum gently, while you are sedated, and the entire colon is examined. You won't remember a thing! Everyone should have a endoscopy at 50 (sooner if you have a family history). The chance to take out tumors (like the one in the picture) can save your life!
Camera. It is a fiberoptic camera that is inserted through your rectum / anus in order to examine the colon.

Related Questions

What is a colonoscopy like?

A simple test. After appropriate colon preparation at home, arrive at the endoscopy center, change into a gown & IV is inserted. Once in the procedure room, final consent is obtained, IV sedation is given (there are options here--some patients choose no sedation, others want to be "out cold"), & a thin flexible tube with video camera is inserted per rectum & advanced, taking pictures, biopsies, & therapeutics.

What results from colonoscopy?

Colonoscopy. This is a good screening tool used for the appropriate age group in screening for colon cancer.

What if the colonoscopy shows something abnormal?

Biopsy taken. If something unusual shows up during a colonoscopy, a biopsy (tissue sample) will be taken. This will be evaluated by a pathologist. Then you will be advised what if anything further needs to be done.
Diagnosis/treatment. At colonoscopy most visible abnormalities are either definitively diagnosed via sampling (biopsy) or removed completely also for diagnosis that includes the treatment. Some findings, eg cancer, need definitive treatment via other modes (for example but not limited to surgery).
Chat afterwards. Generally, your doc will have a brief chat with you after you wake up from sedation and quickly review what they found. At that time they'll communicate any abnormal findings, whether a biopsy was taken and what they expect to find. They should also send you a home with a printed report (or you might get it in the mail).

What is a colonoscopy where can I have one done for free?

See below. A colonoscopy is a procedure that involves putting a flexible scope about as thick as your finger up through your anus and into your colon. This way your entire colon can be seen to check for polyps, cancer, or other problems. It works. A good source to learn about all adult screening recommendations is an iphone app called my health checklist 2012. I don't know where you could get the test free.
Colonoscopy. Colonoscopy is a procedure that enables your physician to examine the lining of the colon (large bowel) for abnormalities by inserting a flexible tube with a miniature camera at the end. The tube is about the thickness of your finger into the anus and advancing it slowly into the rectum and colon. Free colonoscopies are offered in new york city and there is a cancer number to call.

What is virtual colonoscopy? Is is reliable?

Capsule colonoscopy. Virtual colonoscopy involves swallowing a capsule which then takes multiple photos of the intestinal tract on it's way down the body. Although the results are reliable, they are limited because they don't catch all angles. The gold standard and most reliable method is still a colonoscopy as it is the only way to directly get a view of the intestines, as well as treat and biopsy some lesions.
CT scan. A virtual colonoscopy is a ct scan of your colon used in place of a colonoscopy. A colon prep is still required and if polyps are detected then you still need a colonoscopy to remove the polyp. It is also limited in that it can only detect polyps > 5 mm, while the majority of polyps are < 5 mm or flat.
A special ct scan. Virtual colonoscopy is a ct scan of the colon. Unlike optical colonoscopy, the patient does not receive sedation and no polyps can be removed. However, virtual colonoscopy is an excellent tests for patients who are not physically able to undertake regular colonoscopy.

What percentage of colonoscopy screenings end up damaging or perforating the colon? 1/1000? 1/2000?

1/1000. According to an article in the annnals of internal medicine (www. Medscape. Com/viewarticle/550252), the rate of perforation is 1/1000, & complications 5/1000, but only 1 related death in a series of 16, 318 scopes. This study was done on ppl w/problems, not screening cases. It's important to note that, like with any other procedure, the more someone does, the better they get at it.
Very low. For screening colonoscopies the rate of serious complications is generally less than 0.1%. The rate is higher if polyps are removed and the rate also goes up with age of the patient. The rate is lower for doctors who do a lot of them, ie, gastroenterologists.

Fluid in abdomen and right lung. If ascitis, what tests do? Colonoscopy normal. CT normal (just show fluid). Barium normal. Severe ab pain. FBC normal

Complicated. There are several reasons to have ascites. The first could be liver failure from various reasons, including alcoholism, drug toxicity etc. Could be right heat failure or generized edema from kidney failure. Continue follow-up with your doctor. Fluid should be removed to help with diagnosis and give you relief.

What does a colonoscopy look for? R low pelvic pain with vomiting and bloody diarrhea. CT and ultrasound look normal. Dr wants colonoscopy next.

Colonoscopy. Will provide information regarding possible large bowel abnormalities, specifically obstructive lesions, such as tumors or strictures, inflammation, ulcers, etc. Given your symptoms and test results seems to be appropriate.

What are colonoscopies?

Colonoscopies. A colonoscopy is a procedure where one's colon is carefully inspected with a colonoscopy, a lighted, flexible telescope. Polyps can be removed, tumors can be diagnosed, and diseases of the bowel can be diagnosed. Doctors recommend that all people should get a colonoscopy by the age of 50.