Bowel prep
From Austin protocol 2022:
[edit | edit source]- Low-fibre diet for three days prior
- Change to clear fluids at 1pm the day before
Preparations
[edit | edit source]Osmotically balanced
[edit | edit source]- PEG (polyethylene glycol)
- Safer than osmotic laxatives for patients with renal/liver insufficiency/CHF or electrolyte imbalances
Hyperosmotic preparations
[edit | edit source]- Higher risk of electrolyte imbalances
- PicoLAX (NaP + magnesium citrate)
- Fleet (aqueous NaP)
Others
[edit | edit source]- Bisacodyl - stimulates peristalsis
- Use as adjunct for NaP or PEG preparations (decreases volume required)
Boston bowel prep score out of 9
[edit | edit source]- 0-3 for left colon
- 0-3 for transverse
- 0-3 for right
0: unprepared colon, mucosa not seen because of solid stool that is unclearable
1: Some mucosa seen, other areas not seen (staining, residual stool, opaque liquid)
2: Minor residual staining, small fragments of stool/opaque liquid, most mucosa well seen
3: entire mucosa well seen with no residual staining, small fragments of stool, or opaque liquid