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.
Some gastroenterologists say sedation using the powerful sedative propofol is unnecessary for colonoscopies. (Richard Vogel / Associated Press). Paul Thornton. The thought of undergoing a colonoscopy while not completely unconscious might give you shivers. And it shouldn't, say several doctors who perform the procedure.ajen Mathews of Fullerton, also a gastroenterologist, outlines the propofol-free protocol: Moderate sedation with medications like fentanyl and versed is universally used for colonoscopies. At my endoscopy center in Fullerton, we perform about 12,000 procedures a year, and 95% of them are done under moderate sedation.