guaiac การใช้

• There is no consensus on whether to stop warfarin before a guaiac test.
• It is sometimes incorrectly called guaiac wood violets.
• Both sides of the test card can be peeled open, to access the inner guaiac paper.
• Stool guaiac test for fecal occult blood ( gFOBT ) sensitivity varies depending on the site of bleeding.
• Oil of guaiac is produced through steam distillation of a mixture of wood and sawdust from palo santo.
• The flora of importance is guaiac, a small tree which is nearing extinction in the Lesser Antilles.
• In testing, feces are applied to a thick piece of paper attached to a thin film coated with guaiac.
• Further discussion of sensitivity and specificity issues that relate particularly to the guaiac method is found in the stool guaiac test article.
• Further discussion of sensitivity and specificity issues that relate particularly to the guaiac method is found in the stool guaiac test article.
• Fecal occult blood testing ( FOBT ) of the stool is typically recommended every two years and can be either guaiac based or immunochemical.
• When the hydrogen peroxide is dripped on to the guaiac paper, it oxidizes the alpha-guaiaconic acid to a blue colored quinone.
• Proposed oxidations of compounds in guaiac oil as explanation for the formation of the blue bis-methylenequinone as part of the guaiac test.
• Proposed oxidations of compounds in guaiac oil as explanation for the formation of the blue bis-methylenequinone as part of the guaiac test.
• Increased powers are attributed to sculptures which are crafted from materials of significant origin, such as the last guaiac tree and cedar wood.
• The two inventors created a compound of two acids _ guaiac acid and ABTS acid _ together with a dye that is added to the silicon gel.
• The stool guaiac test was originally the principal colon cancer screening technology available, but modern tests which look for globin or DNA are now also available.
• The stool guaiac test method may be preferable to fecal immunochemical testing ( FIT ) if there is a clinical concern about possible gastric or proximal upper intestinal bleeding.
• Even when using anticoagulants a high proportion of positive guaiac tests were found to be due to diagnosable lesions, suggesting anticoagulants may not cause bleeding unless there is an abnormality.
• Though the FIT test is preferred, even the guaiac FOB testing of average risk populations may have been sufficient to reduce the mortality associated with colon cancer by about 25 %.
• Oil of guaiac is primarily composed of 42-72 % guaiol, bulnesol, ?-bulnesene, ?-bulnesene, ?-guaiene, guaioxide and ?-patchoulene.