On bedside urine-testing : a clinical guide to the observation of urine in the course of work / by Geo. Oliver.

Date:
1885
Catalogue details

Licence: Public Domain Mark

Credit: On bedside urine-testing : a clinical guide to the observation of urine in the course of work / by Geo. Oliver. Source: Wellcome Collection.

Provider: This material has been provided by the Royal College of Physicians of Edinburgh. The original may be consulted at the Royal College of Physicians of Edinburgh.

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    presence of a small quantity of blood ; but when in larger proportion, blood communicates a distinctive red colour (see p. 31). When the colouring matter of the blood corpuscles is present (hsemo- globinuria or haematinuria) in large quan- tity, the urine is as dark in colour as port wine (see p. 32). (d) Bile.—Bile is also a cause of dark urine. (See p. igg). (e) Medicines, &c.—The urine may be dark, or even black, when carbolic acid or creosote has been taken in large quantity.^ Certain vegetable substances, in passing out by the urine, communicate their dis- tinctive colours ; such as rhubarb, log- wood, whortleberries, indigo, madder, &c. Santonin gives a yellow bile-like colour to acid urine, which moreover, further re- sembles biliary urine in staining the linen of the patient, but is easily distinguished by striking a crimson reaction on adding 1 Carbolic urine may be pale when voided, but becomes dark on exposure to the air. Pyrocatechin (a normal con- stituent of horses' urine) in rare cases appears in human urine, which is likewise of ordinary colour when passed, but darkens on standing, or immediately on adding an alkali. (Ebstein and Miiller),