Randomized Controlled Trial
Copyright ©The Author(s) 2015.
World J Gastroenterol. Jul 14, 2015; 21(26): 8184-8194
Published online Jul 14, 2015. doi: 10.3748/wjg.v21.i26.8184
Table 2 Bowel preparation scale
0 = Unprepared colon segment. Due to solid stool that cannot be cleared, the mucosa cannot be observed
1 = Some portions of the mucosa of the colon segment can be observed, but other areas are covered by residual staining consisting of residual stool or opaque fluid
2 = Minor amount of residual staining. No stool fragments or small quantities of opaque fluid, but the mucosal surface of the colon segment can be observed well
3 = The entire mucosa of the colon segment can be observed well and has no residual staining