Directions For A Practical Course In Chemical Physiology

Paperback | February 2, 2012

byWilliam Cramer

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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. 1915. Excerpt: ... ABNORMAL CONSTITUENTS OF URINE. Of the substances which may appear in the urine in pathological conditions, proteins, blood pigments, bile pigments and bile salts, glucose, acetone, aceto-acetic acid, occur most frequently. The fact that these substances are dissolved in urine, a fluid having such a complex composition, introduces certain fallacies in the application of the reactions by which the substances mentioned can be recognised if present alone in a simple watery solution. In the case of proteins, for instance, the fact that the urine has a colour of its own excludes the use of the colour reactions (biuret, xanthoproteic, etc.) as tests for the presence of proteins in urine. The guaiac test for blood is given also by pus, and a variety of other substances which may occur in urine. In the case of sugar it has been pointed out already that Fehling's solution may be reduced by other substances than glucose or lactose. In order to avoid these fallacies, as many different tests as possible should be carried out before deciding whether a certain substance is or is not present in the urine. Some drugs are excreted in the urine, and may introduce further fallacies. The previous treatment of the patient must therefore also be taken into consideration. The following tests for abnormal constituents should be carried out at first on normal urines, then on normal urines to which a very small amount of the abnormal constituents has been added; lastly, on pathological urines obtained from the infirmary. PROTEINS. The proteins of the blood-plasma (globulin, albumin, fibrinogen) are the proteins most frequently met with in the urine. Clinically no distinction is drawn between these different proteins, and the presence of any of them is spoken of clinically as "albu...

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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. 1915. Excerpt: ... ABNORMAL CONSTITUENTS OF URINE. Of the substances which may appear in the urine in pathological conditions, proteins, blood pi...

Format:PaperbackDimensions:32 pages, 9.69 × 7.44 × 0.07 inPublished:February 2, 2012Publisher:General Books LLCLanguage:English

The following ISBNs are associated with this title:

ISBN - 10:0217466842

ISBN - 13:9780217466844

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