Question of the Week

For October 28, 2014

A 70-year-old man with a history of hypertension, gastroesophageal reflux disease, hyperlipidemia, and occasional constipation is due for a colonoscopy. His medication list includes aspirin, lisinopril, pantoprazole, and pravastatin. A previous colonoscopy at age 65 revealed two tubular adenomas, measuring <1 cm each, in the ascending and sigmoid colon; the bowel preparation was described as poor.

Which one of the following bowel preparations is recommended for this patient?

Stool softener twice daily now and 4 liters of polyethylene glycol the night before the procedure
Clear liquids for 72 hours before the procedure, followed by polyethylene glycol
Increased fiber intake to 20 g per day now, followed by 4 liters of polyethylene glycol the night before the procedure
Sodium phosphate preparation the day before the procedure
Two liters of polyethylene glycol the evening before the procedure and 2 liters of polyethylene glycol the morning of the procedure