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What is a Colonoscopy Test: Procedure, Uses and Risks

A Colonoscopy test examines your bowel or large intestine, including the colon. The test is extremely helpful in diagnosing gastrointestinal diseases and cancer of the colon.

If taken at the intervals prescribed by your healthcare provider, the test might also help you prevent colon cancer. The following sections mention all about the test, its procedure, how you should prepare for it and more. Read on.

Team Digit

What Is the Meaning of a Colonoscopy Test?

Colonoscopy is a form of endoscopy which uses a thin tube with a lit camera inserted into your body as the instrument. There are different types of colonoscopy tests for different parts of your body.

During the test, the colonoscope is relayed into your colon via the anus and rectum. It then transfers images of your big intestine's inside to a screen for projections.

How to Prepare for a Colonoscopy Test?

The first step towards colonoscopy prep is keeping an empty colon. You may have to fast for some time or use laxatives.

The following steps detail the preparation tips for a colonoscopy test:

Eat light three or four days before your test. In this regard, doctors generally recommend low-fibre food that is light for the stomach and easy to digest.
Your doctor will recommend you not eat anything solid one day before your test. You will be allowed to consume only clear fluids. During this time, you need to stay hydrated.
The night before your colonoscopy test, your doctor might recommend you to take laxatives to clear your digestive tract.

How is Colonoscopy Performed?

The entire colonoscopy test procedure takes 15 to 20 minutes. It is performed through the following steps:

You'll put on a hospital gown just before your colonoscopy. The majority of people take sedatives and painkillers. Usually, this takes the form of supervised anaesthesia, though lighter forms of sedation might be provided with your doctor's approval and upon request.
You'll be advised to lie on your side on a comfortable exam table throughout the process. To better view your colon, your doctor could have you stand with your legs close to your chest.
Next, the doctor will guide the colonoscope into your rectum and anus, and colon. There is also a camera on the other end of the colonoscope that helps transmit the imaging
After positioning the colonoscopy, your doctor will put carbon dioxide into your colon for a better view
Your healthcare professional may also remove a tissue from the area for further examination

What are Some Common Uses of Colonoscopy Tests?

If you are wondering what a colonoscopy test is, know that the procedure can be undertaken mainly to detect colon cancer. However, it can also help diagnose other health issues. Some common reasons behind this procedure include:

Search for indications of cancer and other issues.
investigate the reason for any sudden changes in bowel habits.
Determine the cause of unexplained weight loss, persistent constipation, or diarrhoea and assess the symptoms of stomach pain or bleeding

How Often Should a Colonoscopy Be Performed?

The frequency of the colonoscopy procedure varies from one person to another. However, the American College of Physicians recommends undergoing this procedure once every ten years if you fall under this category:

You are between 50 and 75 years old.
Your family has a history of colorectal cancer.
You have a life expectancy of 10 years at least.

On the other hand, the British Medical Journal recommends undergoing this procedure once for individuals who:

Fall between the age bracket of 50 to 79 years.
Are at a risk of colorectal cancer.
Present with chances of having colon cancer in the next 15 years.

What are the Risks of a Colonoscopy?

Any complications or risks due to the procedure are very unlikely. However, you may present with the following symptoms:

A tear in your colon wall, for example
Bleeding out of control after tissue removal
Infection that calls for medication
Strange responses to the anaesthesia

What to Do After a Colonoscopy?

Following your operation, you will be advised to spend the first hour in the medical facility for recovery from the anaesthesia. Your medical team will keep an eye out for any indicators of difficulties and continue to check your vital signs.

Your doctor will also review any procedures they conducted and any findings they made during the examination after you wake up. A formal report will also be sent to you by mail or email. You'll receive the test findings a bit later if they collected a tissue sample for a biopsy.

Typically, the anaesthesia takes around 24 hours to wear off after the colonoscopy test. It is advised to listen to your healthcare professional carefully and follow the steps carefully. Further, note that you may feel gassy and have a bit of bloating and nausea for a few hours after the test.

FAQs on Colonoscopy Test

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When will I get my colonoscopy test results?

Most colonoscopy results are given right away. However, if your doctor collected tissues for a biopsy, it may take a while for you to receive the results.

What are some alternative ways to screen for colon cancer?

A colonoscopy is the most sensitive screening for colon cancer. However, it can also be diagnosed through other methods, such as faecal occult blood tests or virtual colonoscopy.

Will I have to undergo a colonoscopy test if I am pregnant?

A colonoscopy test during pregnancy is recommended when it is necessary. However, the procedure is completely safe for the baby and the parent. Your doctor might advise you to wait until you have given birth for regular screening.