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.
The breath test for lactulose is performed by the patient being asked to breathe into a breath collection device that collects and analyzes the exhaled air for the presence of hydrogen.reparation for a lactulose breath test is rather extensive and requires the patient to avoid taking any antibiotics for up to about 2 weeks before the test. Any foods that are known to digest slowly such as coarse breads, nuts and beans should be avoided up to a whole day prior to the test.