Colonoscopy and Cancer Screening PreparationYour doctor will give you more specific directions about colonoscopy or endoscopy preparation, but there are some general recommendations that are made for most cases.  Most doctors ask that you:

– Fast before the procedure. You will most likely be asked to stop drinking and eating at midnight before the procedure. This is done to ensure that your stomach is empty for the procedure.

– Stop taking certain medications. You may be asked to stop taking certain medications such as blood thinners and medications dealing with diabetes, heart disease, or high blood pressure.

Upper Endoscopy (Egd)

Fast before the endoscopy. Stop eating/drinking at midnight before the procedure. This is done to ensure that your stomach is empty for the procedure.

You should tell your doctor about any medications and supplement that you’re taking before your procedure.


Your doctor will prescribe a bowel preparation to be taken the day before your procedure along with a clear liquid diet. In some cases, your doctor may prescribe a two-day preparation. Be sure to read your instructions carefully.

Clear liquid diet

A clear liquid diet consists of clear liquids, such as water, broth and plain gelatin, that are easily digested and leave no undigested residue in your intestinal tract. Your doctor may prescribe a clear liquid diet before certain medical procedures or if you have certain digestive problems. Because a clear liquid diet can’t provide you with adequate calories and nutrients, it shouldn’t be continued for more than a few days.


A clear liquid diet is often used before tests, procedures or surgeries that require no food in your stomach or intestines, such as before colonoscopy. It may also be recommended as a short-term diet if you have certain digestive problems, such as nausea, vomiting or diarrhea, or after certain types of surgery.

Diet details

A clear liquid diet helps maintain adequate hydration, provides some important electrolytes, such as sodium and potassium, and gives some energy at a time when a full diet isn’t possible or recommended.

The following foods are allowed in a clear liquid diet:

  • Plain water
  • Fruit juices without pulp, such as apple juice NO red or purple
  • Strained lemonade
  • Clear, fat-free broth (bouillon or consomme)
  • Clear sodas
  • Plain gelatin
  • Honey
  • Ice pops without bits of fruit or fruit pulp
  • Tea or coffee without milk or cream

Any foods not on the above list should be avoided. Also, for certain tests, such as colon exams, your doctor may ask you to avoid liquids or gelatin with red or purple coloring.

A typical menu on the clear liquid diet may look like this.

1 glass fruit juice
1 cup coffee or tea (without dairy products)
1 cup broth
1 bowl gelatin

1 glass fruit juice
1 bowl gelatin

1 glass fruit juice
1 glass water
1 cup broth
1 bowl gelatin

1 ice pop (without fruit pulp)
1 cup coffee or tea (without dairy products) or a soft drink

1 cup juice or water
1 cup broth
1 bowl gelatin
1 cup coffee or tea


If you receive anesthesia/sedation you will not be allowed to drive for 24 hours or leave the center without a responsible adult to accompany you home.
You may use Saferide for transportation at your cost.

You will be asked to acknowledge receipt of a notice on the day of your procedure.

On the day of your procedure please bring the following:

  • Notice of visit
  • All of your Medical Insurance cards
  • One of the following:
    • Driver’s License
    • State ID
    • Or other Legal Photo Identification

Please bring completed paperwork from your doctor’s office.

If the address on your identification is different than your current address, a current utility bill must be provided. The Federal Trade Commission (FTC), recently issued a regulation known as the “Red Flag Rule” (Sections 114 and 315 of the Fair and Accurate Credit Transactions Act), that is intended to reduce the risk of identity theft.  As a healthcare provider, since we bill for services rendered, we may be considered a “creditor” as defined by the Equal Opportunity Credit Act and are required to comply with the Red Flag Rules.


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