Virtual colonoscopy

Preparing for the Examination

A virtual colonoscopy requires full purging of the colon, so you must follow the steps below to prepare.

You can obtain all the following items at no charge from one of our clinics:

• One bottle (225 mL) of E-Z-Cat 4.6% barium oral solution (do not dilute the content)
• The preparation kit
• Three (3) bisacodyl (Dulcolax) tablets
• One bottle of ready-to-drink iodinated contrast material (Gastrografin 30 mL)

Two (2) days before the examination, please follow this modified diet to properly prepare:

First day of preparation

Permitted liquids:

• Clear liquids only
• Clear broth
• Tea

Permitted solids:

• White bread and white pasta
• One 125 g (4 oz.) serving of tuna or skinless white poultry per meal, or 2 eggs
• Tomato sauce without vegetables, peels or onions
• Margarine and oil
• Fibre-free liquid meal substitutes

Prohibited solids:

• Fruit and vegetables
• Red meat
• Nuts
• Beans
• Dairy products
• Any type of grain, cereal or whole wheat product
• For vegan patients (who do not consume any animal products), substitute chicken, tuna or other fish with tofu (not fried).

The day before the examination

The evening before the examination, it is important that you not eat any solid food.

Breakfast

• Drink at least 250 mL (8 oz.) of clear liquid (liquid meal replacements are permitted).
• In the morning, drink at least two (2) 250 mL (8 oz.) glasses of clear liquid. Avoid coffee and cola.

Before noon

• Prepare the Bi-PegLyte solution as follows:
• Dissolve the entire contents of each 70 g pouch in 1 litre (32 oz.) of water.
• Stir until you get a clear solution. Do not add other ingredients (e.g. flavourings).
• Refrigerate the solution to improve the taste.

Lunch

• Drink at least 250 ml (8 oz.) of clear liquid (liquid meal replacements are permitted).
• Drink half of the E-Z-Cat 4.6% barium oral solution.
• Take all three Dulcolax tablets orally without chewing.
• Apply petroleum jelly (Vaseline) to the anus to reduce irritation caused by diarrhea.
• Repeat as often as necessary during preparation.

Supper

• No later than 5:00 p.m., eat only clear liquids for supper (e.g. chicken broth, water).
• Drink the remaining E-Z-Cat 4.6% barium oral solution.

Evening

At 6:00 p.m., start drinking the Bi-PegLyte preparation. Follow the instructions on the package.

• Quickly drink one glass (240 mL) of previously prepared solution every 10 minutes.
• Be sure to drink all of the solution prepared with the first pouch.
• If necessary, pause for an hour or two between drinking the two litres of Bi-PegLyte preparation.
• Drink 250 to 500 mL of juice or other clear liquid to hydrate yourself, if necessary.

At 10 p.m., drink the bottle of Gastrografin (30 mL), unless you are allergic to iodine.

• If you are in doubt, call 514-866-6622.
• Then, drink one 250 mL (8 oz.) glass of clear liquid.
• Do not eat or drink until the examination is finished.
• If necessary, take your usual medication with a sip of water.

Morning of the examination

• No eating or drinking is permitted.
• Smoking and chewing gum are not permitted.
• If necessary, take your usual medication with a sip of water.

Important information

In the evening

Do not be concerned if you fail to have a bowel movement within six hours after taking the tablets. Six hours after taking Dulcolax or shortly after supper, start drinking the solution. Quickly drink one glass (240 mL) of the solution every 10 minutes. Be sure to drink all of the solution from the first pouch.

You can take a one- or two-hour break between drinking the two litres of Bi-PegLyte preparation. If you feel the need, you can drink 250 to 500 mL of juice or other clear liquid to hydrate yourself.

Mix the Gastrografin with the second litre of Bi-PegLyte preparation. REPEAT by drinking the second litre of the prepared solution (240 mL every 10 minutes).

• You will pass watery stools within one hour, and then soft stools one to two hours after you finish drinking the solution. The enema is finished when the fecal evacuation is colourless.
• Bloating or abdominal distension may occur before you pass the first stool. If abdominal distension or discomfort persists, temporarily stop drinking the Bi-PegLyte or drink each 240 mL serving at more widely spaced intervals (more than 10 minutes) until the symptoms disappear.
• If you experience severe swelling, abdominal pain or distension, slow down or temporarily stop taking the solution until the symptoms disappear. Report these symptoms to your doctor.
• You can take your usual medication with a sip of water.