How to Use Fleet Phospho Soda in Colonoscopy Preparation

Written by erica roth
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Before undergoing a colonoscopy, you will need to clear out your digestive tract completely so your doctor will be able to examine your colon. Fleet makes a phospho soda kit that speeds up excretion via the active ingredient of sodium phosphate. Read all of the directions in the Fleet phospho soda kit thoroughly so you will understand how to use it in preparation for a colonoscopy.

Skill level:
Moderately Easy

Things you need

  • Fleet Phospho soda kit
  • Drinking glass
  • Kitchen scale
  • Measuring cup
  • Clear liquids

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  1. 1

    Discuss with your doctor the exact time you should start your colonoscopy preparation, as well as dosage amounts. Fleet phospho soda is usually used the day before your appointment, but the exact times of your dosages will depend on the time of your procedure.

  2. 2

    Eat a normal breakfast on the day you are beginning your colon cleanse.

  3. 3

    Take the first phospho soda dose at the time your doctor has told you. Fleet's doses are pre-measured, and each contains 14.8ml. of sodium phosphate liquid. Your dosage may be 2 or 3 of these pre-measured bottles. Empty each pre-measured bottle into 236ml. of water or another clear liquid. Clear liquids include apple and white grape juice, pulp-free lemonade, black coffee or tea, clear soft drinks and clear chicken broth.

  4. 4

    Drink at least 709ml. of clear fluids between phospho soda doses. Doses are generally scheduled 10 to 12 hours apart.

  5. 5

    Eat a bland lunch at the time your doctor scheduled for you (usually before 2p.m.). The Fleet instruction booklet that came in your kit (see Resources) gives all of the food choices, including chicken, turkey, white bread, applesauce, eggs, white rice, plain pasta and baked potato. Weigh your meats with a kitchen scale and measure vegetables accurately to be sure you are staying within you allotted amounts.

  6. 6

    Use the premoistened anorectal wipes included in the Fleet kit to alleviate pain and burning associated with diarrhoea as the laxative begins to take effect.

  7. 7

    Drink your second dose of phospho soda diluted in clear liquids.

  8. 8

    Drink your dinner in the form of clear liquids. By this time, you may experience cramping and not feel like eating or drinking. It's very easy to become dehydrated when you are preparing for a colonoscopy if you do not drink enough clear liquids, so try to push through and drink as much as you can.

Tips and warnings

  • Stay close to home while you are undergoing the preparatory colon cleanse. You may be needing the bathroom as often as every 30 minutes.
  • Foods or drinks that are red or purple in colour can make it difficult or even impossible for your doctor to see the condition of your colon during a colonoscopy. Do not eat red or purple foods while you are in preparation mode.

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