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Doctor insights on: Show Me How A Colonoscopy Is Performed

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How is a colonoscopy performed?

How is a colonoscopy performed?

Camera on a snake: A video camera on the end of a flexible stalk, not unlike a snake, is inserted through the rectum while you are asleep. You don't feel a thing, you won't remember it, and the only bed part is the prep. ...Read more

Dr. Charles Cattano
2,044 doctors shared insights

Colonoscopy (Definition)

Colonoscopy is the procedure of using a long flexible camera to visualize the entire colon from the inside with the option to take pictures, video, perform biopsies, remove polyps, etc. Generally people are sedated and do ...Read more


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Show me how a myomectomy is done?

Show me how a myomectomy is done?

Myomectomy: We open the uterus right where the fibroid is, and dissect it out of the myometrium (muscle of the uterus) then close in layers the defect. ...Read more

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How does the risk of a gastroscopy compare to a colonoscopy?

How does the risk of a gastroscopy compare to a colonoscopy?

Neither have risk: When both procedures carried out under mild anesthersia, the patient essentailly experiences no side effect. With colonoscopy air however has to inflate bowel for visualization and being NPO isnt suffiecient to clean out the colon. GoLytley has to be employed. Minor risk with some bx close to bowel mucosa where perforation has resulted .especially in colon. ...Read more

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What can colonoscopy results tell a doctor?

What can colonoscopy results tell a doctor?

Lesions in bowel: Colonoscopy is a method for direct visualization of the entire colon from several cm. above the rectum to the splenic and hepatic flexures to the cecum. it allows for examination of the tissue of the bowel, allowing for biopsies and identification and biopsy of any inflammatory process to lesions such as polyps, carcinomas and obstructing processes. ...Read more

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Please help me understand the process for getting a CT scan and the results. Does a child have to undergo anestesia? How long does it take to get results? How often does a patient need to wait between scans?

Please help me understand the process for getting a CT scan and the results. Does a child have to undergo anestesia? How long does it take to get results? How often does a patient need to wait between scans?

Depends on child: Frequently an older child can undergo a ct scan without anesthesia. Smaller children might need sedation or anesthesia in order to remain still for the procedure. The scan is very short, less than 10 minutes usually, and then the radiologist has to read the results. This takes longer. Ct scans do subject the patient to a lot of radiation, so they should not be used as a routine screening device. ...Read more

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How is a liver biopsey performed?

How is a liver biopsey performed?

Varies: Thirty years ago, the physician would just tap out the liver and using a suction needle obtain tissue. For the most part today, the liver is seen under ultrasound and a spring-loaded needle obtains the tissue. ...Read more

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How is a d&c performed and what to expect?

How is a d&c performed and what to expect?

D&C: D&c normally refers to a procedure involving a curette, also called sharp curettage. However, some sources use the term D&C to refer more generally to any procedure that involves the processes of dilation and removal of uterine contents, which includes the more common suction curettage procedures of manual and electric vacuum aspiration. ...Read more

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I was wondering if a normal colonoscopy is painful and is a virtual colonoscopy as accurate as a normal colonoscopy and can it detect any cancer?

I was wondering if a normal colonoscopy is painful and is a virtual colonoscopy as accurate as a normal colonoscopy and can it detect any cancer?

Not painful: No colonoscopy is a painless procedure(it is done under sedation, so you would not feel anything). Virtual colonoscopy is still not a well established procedure although it does come 90 close to standard colonoscopy in its accuracy and reliability. ...Read more

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Can you tell me how is a urethral dilation done for a female?

Can you tell me how is a urethral dilation done for a female?

See answer: Urethral dilation is an outmoded practice with few indications in women compared to years ago. It was thought to be a cure for recurrent UTI or other urinary symptoms. It is now felt that there is little scientific basis for this. However, some women may have truly narrowed urethras (strictures) and dilation with successively larger instruments can temporarily restore normal caliber. ...Read more

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How is a C T Enterography done and why is it done. What could it reveal? Suffering from cronic constipation. Chrons suspected.

How is a C T Enterography done and why is it done. What could it reveal? Suffering from cronic constipation. Chrons suspected.

Good image of SI: CT scanning allows detailed cross-section pictures of your abdomen and organs. Adding oral (you drink it) and IV contrast material can highlight the lining of the intestine. Characteristic signs of inflammation in the lining of the bowel can be seen suggesting inflammatory bowel disease--Crohn's or ulcerative colitis. Tumors, bowel obstructions, abscesses or bleeding can also be seen. ...Read more

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How is a rectal exam performed? How is a patient positioned for the exam? Is an erection normal after a rectal exam?

How is a rectal exam performed? How is a patient positioned for the exam?  Is an erection normal after a rectal exam?

First rectal exam?: Examining practitioner will ask you to pull down your pants, either bend forward or lay on your side, & with a gloved finger will gently insert it into your rectum. The exam takes brief seconds, but permits assessment of rectal tenderness, masses, bleeding from the gut, rectal/anal tone, visual anal inspection, & your prostate. Rarely, expression of prostate fluid or erection may occur. Be well-- ...Read more

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How can a cat scan be done on someone who is pregnant?

How can a cat scan be done on someone who is pregnant?

See below: 1st, they try to avoid doing a ct scan in the first place. If an alternative isn't available, then they shield the belly with lead to avoid radiation to the fetus. If the concern is in the abdomen or pelvis, some radiation will hit the fetus. But they'll use as little radiation (turn down power & duration of radiation) as much as possible. In an emergency, u have to treat the mom to save baby. ...Read more

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How do pet scans work? My wife is scheduled for a pet scan and i was wondering how it works. Is this a good test relative to the other kinds of tests you can do? Is it accurate? Do you know how long it usually takes to get the results back?

How do pet scans work? My wife is scheduled for a pet scan and i was wondering how it works.  Is this a good test relative to the other kinds of tests you can do? Is it accurate? Do you know how long it usually takes to get the results back?

Positrons -Really!!: A pet/ct looks at the function of the body. Radioactive drugs (usually a glucose analog) distribute based on differences in function, release a positron (antimatter), which is destroyed by combining with an electron, making an x-ray we detect. Follow the directions the imaging center gives exactly, because patient prep is critical to getting the best test. Pet/cts are usually read the same day. ...Read more

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Is a colonoscopy the only test for colon cancer? Can a fit test replace the colonoscopy? Is it painful to have a colonoscopy awake?

Is a colonoscopy the only test for colon cancer? Can a fit test replace the colonoscopy?  Is it painful to have a colonoscopy awake?

Colonoscopy: Every person (even asymptomatic) after age of 50 should undergo screening colonoscopy. If there is a family history of colon cancer screening should be done earlier. Awake? Why? I won't recommend to do it being awake might not be a pleasant experience. ...Read more

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How is a colonoscope test done ?

How is a colonoscope test done ?

Sedation: Colonoscopy is performed by placing a long, flexible tube along the entire colon and rectum via the anus. While people dread this, it is painless when done under sedation. The worst part is the day before when the "prep" is taken to purge the system. Although unpleasant, this will find polyps before they turn into cancers, thus saving one from major surgery. If you're 50, "get 'er done". ...Read more

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Need to do barium for CT scan. I'm nursing. They said the barium is safe. Is it really safe for her? She is 10 weeks.

Need to do barium for CT scan. I'm nursing. They said the barium is safe. Is it really safe for her? She is 10 weeks.

Yes.: The barium is inert. It won't be absorbed by the body, the ingested barium will pass through the bowel and be eliminated in the feces. Your baby will therefore not be exposed to any barium at all. ...Read more

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How is a liver biopsy performed and how long is this procedure?

How is a liver biopsy performed and how long is this procedure?

Uses imaging: Either ct scan or ultrasound for guidance. Small amount of sedation. Skin will be numbed with lidocaine. Small needle will take samples. See radiologyinfo.Org. ...Read more

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Has anyone done a penis biopsy before, and can tell me how big is the scar?

Has anyone done a penis biopsy before, and can tell me how big is the scar?

Yes urologist: Ask the urologist. Focus on what you are trying to diagnose. Urologist wil be glad to go over the procedure with you (informed consent). ...Read more

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Interventional Radiology: About how long after an IRE for cancerous tumor til a CT/PET scan is done to ascertain the results?

Interventional Radiology: About how long after an IRE for cancerous tumor til a CT/PET scan is done to ascertain the results?

What is IRE?: It is best to avoid abbreviations...they can only delay interpretation of what is wrong and where it is! As for your answer to your question... your oncologist is in a better position to address them than an interventional radiologist. ...Read more