As with Spanish moss and ball moss, lichens are often blamed for the decline and death of shrubs and trees. And, as with Spanish moss and ball moss, although lichens are frequently seen growing on the bark of plants, they do not cause harm.
Experimental: Split dose preparation; PM colonoscopy. Three hourly doses of lactulose for oral solution are taken in the evening prior to the day of the colonoscopy procedure; one dose is taken on the morning of the procedure. The colonoscopy is initiated after noon.
While in the past colonoscopy prep has been heavily weighted towards a clear liquid diet for several days prior to the procedure, many doctors have relaxed this stringent regimen and now allow their patients to follow what's known as a low-residue diet up to the day before their colonoscopy.