We seek to evaluate whether a same day, reduced liquid volume (2liters) polyethylene glycol
(PEG-ELS) bowel preparation can achieve adequate colon cleansing in patients scheduled for
afternoon colonoscopies. The primary outcome will be adequacy of the bowel preparation.
Secondary outcomes will include Boston Bowel Preparation Scale score, patient compliance with
completing the preparation, tolerability of the preparation, willingness to repeat the
preparation, side effects, duration of procedure (endoscope insertion and withdrawal times),
and polyp detection.