File:Examination of the urine; a manual for students and practitioners (1909) (14775047374).jpg

Identifier: examinationofu00saxe (find matches)
Title: Examination of the urine; a manual for students and practitioners
Year: 1909 (1900s)
Authors: Saxe, George Alexander De Santos, 1876-1911
Subjects: Urine
Publisher: Philadelphia and London, W. B. Saunders Company
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

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sis ofphosphaturia should be made only when the deposits occurimmediately after the urine is voided, and when a change ofdiet will not rectify the trouble. (For further data con-cerning Phosphaturia, see p. 216.) Primary deposits of crystalline phosphates (depositedwithin the body) are often found in cases of inflammationand suppuration of the urinary tract, such as cystitis, 1 This compound has long been erroneously called neutral calciumphosphate. 266 EXAMINATION OF THE URINE pyelitis, etc., especially when there is a decomposition of theurine within the tract as the result of an obstruction some-where; for example, an enlarged prostate, a stricture ofthe urethra, etc. Infection of the kidney, pelvis, or bladder may be ac-companied by ammoniacal decomposition of the urine,which results in the deposit of triple phosphates. Calcium Carbonate.—This is a very rare deposit inhuman urine, but is found in large amounts in horses andother herbivora. It occurs in alkaline urine on standing
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Fig. 53.—Calcium sulphate (von Jaksch). for a long time, along with phosphatic deposit. It occurseither as an amorphous sediment or characteristicallyin small spherules, resembling ammonium urate, butsmaller, colorless, usually in pairs (dumb-bells), oftenconcentrically striated, and are distinguished by theireffervescence (C02) upon addition of acetic acid. Calcium Sulphate.—This is a very rare sedimentand occurs in highly acid urine, of high specific gravity,in the form of needle-like prisms (Fig. 53), or in elongatedplates with obliquely cut ends. They may be single orin sheaves or rosets. They are distinguished from cal- UNORGANIZED SEDIMENTS 267 cium phosphate by their insolubility in ammonia, acetic,and sulphuric acids, and their slight solubility in HC1(Delepine). Leucin and Tyrosin.—These two substances havealready been described under the heading of ChemicExamination (p. 201). Leucin occurs in the shape of more or less yellow, highlyrefracting spheres which resemble oil

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