Acidic colonic microclimate--possible reason for false negative hydrogen breath tests.
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چکیده
منابع مشابه
Acidic colonic microclimate--possible reason for false negative hydrogen breath tests.
About 5% of normal subjects fail to produce increased hydrogen breath concentration after ingestion of the non-digestible carbohydrate lactulose (low hydrogen producers). The existence of low hydrogen producers limits the diagnostic use of hydrogen (H2) breath tests. We studied the effects of lactulose and of magnesium sulphate (MgSO4) pretreatment on stool-pH and on hydrogen exhalation after o...
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Hydrogen breath tests are widely used to explore the pathophysiology of functional gastrointestinal disorders. Small intestinal bacterial overgrowth and carbohydrate malabsorption are disorders detected by these tests that have been proposed to be of great importance for symptoms in, for instance, irritable bowel syndrome. However, conclusions drawn from these studies are highly controversial a...
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Hydrogen breath tests are non-invasive and safe diagnostic tools used to investigate functional intestinal disorders. For the diagnosis of fructose or lactose malabsorption as well as for the detection of small intestinal bacterial overgrowth syndrome, hydrogen breath tests are even regarded as gold standard. However, standardization of the testing procedure and the interpretation of the test r...
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Hydrogen breath tests using various substrates like glucose, lactulose, lactose and fructose are being used more and more to diagnose small intestinal bacterial overgrowth (SIBO) and lactose or fructose malabsorption. Though quantitative culture of jejunal aspirate is considered as gold standard for the diagnosis of SIBO, hydrogen breath tests, in spite of their low sensitivity, are popular for...
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The Microbiology Unit of Southern Cross Pathology Australia, Monash Medical Centre, has used the Organon Technika BacTAlert automated blood culture instrument since 1995 for the detection of causative organisms of septicemia and bacteremia. When a blood culture bottle is flagged as positive, it is removed from the instrument and subculturing and Gram staining are performed. Gram-positive cocci,...
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ژورنال
عنوان ژورنال: Gut
سال: 1988
ISSN: 0017-5749
DOI: 10.1136/gut.29.1.21