This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1904 Excerpt: ...is characteristic of the urine in typhoid, measles, and acute tuberculosis. Others deny the value of the test, the difference being possibly due to the interference of phenol derivatives. Ferments Found in the Urine.--Pepsin, trypsin and a diastasic ferment have been found in the urine in addition to the organized ...
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This historic book may have numerous typos and missing text. Purchasers can download a free scanned copy of the original book (without typos) from the publisher. Not indexed. Not illustrated. 1904 Excerpt: ...is characteristic of the urine in typhoid, measles, and acute tuberculosis. Others deny the value of the test, the difference being possibly due to the interference of phenol derivatives. Ferments Found in the Urine.--Pepsin, trypsin and a diastasic ferment have been found in the urine in addition to the organized ferments of lactic, butyric and acetic acids and urea. The pepsin ferment of the urine is said to be absent in the urine of typhoid fever, carcinoma of the stomach, and, according to some, in nephritis. Detection.--Pepsin is best detected by Sahli's method. A little pure fibrin is placed in the urine and set aside for several hours. It is then removed, placed in diluted HCl(o.2 per cent ), and the mixture kept at a temperature of from30 10400 C. (86 to 1040 F.). Any pepsin present in the urine is taken up by the fibrin, and the latter is slowly digested in the acid fluid. The diastasic ferment is detected in the usual manner, by its effect upon starchmucilage. The milk-curdling ferment has occasionally been found in the urine. Ptomains, or diamins, have been found in healthy urines as well as in morbid urines. In most fevers, especially in the specific and contagious fevers, the urine contains certain poisonous alkaloids. These can be detected by first acidifying the urine and filtering from any mucus present, and then precipitating with the double iodide of potassium and mercury. The precipitate, which contains these bases, is distinguished from albumin or other substances by its solubility in alcohol at a gentle heat. The diamins of the urine may be precipitated as benzoyl compounds by benzoyl chlorid, and caustic potash. By this means cadaverin, putrescin and other diamins have been detected in the urine of vesical catarrh. Normal urine is said...
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