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The pH of human faeces is variable but the average is pH 6.6 for normal faeces. [1] [2] A lower faecal pH (very acidic stool) can indicate a digestive problem such poor absorption of carbohydrates or fats, [3] lactose intolerance, [4] an infection such as E. coli or rotavirus, or overgrowth of acid-producing bacteria (such as lactic acid bacteria).
Phenolphthalein has been used for over a century as a laxative, but is now being removed from over-the-counter laxatives [10] over concerns of carcinogenicity. [ 11 ] [ 12 ] Laxative products formerly containing phenolphthalein have often been reformulated with alternative active ingredients: Feen-a-Mint [ 13 ] switched to bisacodyl , and Ex ...
Esophageal pH monitoring is performed for 24 or 48 hours and at the end of recording, a patient's tracing is analyzed and the results are expressed using six standard components. Of these 6 parameters, a pH score called Composite pH Score or DeMeester Score has been calculated, which is a global measure of esophageal acid exposure. A Demeester ...
Urine drug test kits are available as on-site tests, or laboratory analysis. Urinalysis is the most common test type and used by federally mandated drug testing programs and is considered the Gold Standard of drug testing. Urine based tests have been upheld in most courts for more than 30 years.
The FDA has authorized the Healgen Rapid Check COVID-19/Flu A&B Antigen test for over-the-counter use. / Credit: Healgen.com. Similar to other virus test kits on the market, the Healgen product ...
A universal indicator is a pH indicator made of a solution of several compounds that exhibit various smooth colour changes over a wide range pH values to indicate the acidity or alkalinity of solutions. A universal indicator can be in paper form or present in a form of a solution. [1]