File:Urinary analysis and diagnosis by microscopical and chemical examination (1906) (14598077530).jpg

Identifier: urinaryanalysi00heit (find matches)
Title: Urinary analysis and diagnosis by microscopical and chemical examination
Year: 1906 (1900s)
Authors: Heitzmann, Louis, 1864- (from old catalog)
Subjects: Urine Diagnosis
Publisher: New York, W. Wood and company
Contributing Library: The Library of Congress
Digitizing Sponsor: The Library of Congress

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
Fig. 22.—Uric-acid Coxcretioxs (X 500). culi or stones, which form the largest number of renal stones, being per-haps seventy per cent of all calculi passed. Quite frequently small, irregular plates of a light or dark yellow colorare seen under the microscope; the sediment in which these are foundmay be of a mucous or granular character, which gives no indication ofcontaining any uric acid. Different varieties of uric acid with calcium-oxalate crystals and occasionally a varying amount of urates are not in- 74 UBINABY ANALYSIS AND DIAGNOSIS. frequently met with in the same specimen. When these features are!present, the diagnosis of lithccmia is justified. Although in almost all cases there will be no difficulty in recognizing ;uric acid under the microscope, there may be extremely pale, practically Icolorless lozenges or irregular plates which might be mistaken for phos- I :i
Text Appearing After Image:
Fig. 23.—Pale Uric-acid Crystals (X 500). phates or imperfect calcium-oxalate crystals. In Fig. 23 pale crystals ofdifferent sizes and shapes are depicted. In order to ascertain their exactcharacter, a small amount of some alkali, such as caustic potash or soda,may be added while the specimen is examined under the microscope,when the uric-acid crystals will be seen to dissolve readily. If now adrop or two of acetic acid be added, small characteristic crystals willsoon reappear. CRYSTALLINE AND AMORPHOUS SEDIMENTb. 75 2. Sodium Urate.—Sodium urate (see Fig. 24), when present in largeamounts, forms the so-called clay-water sediment, which renders the urineturbid upon cooling. It may be found alone or in combination withuric acid and potassium urate, from which latter it can hardly be distin-guished. Such a sediment is the so-called sedimentum lateritium. Sodiumurate usually consists of groups of light or dark brown, fine, amorphousgranules in a moss-like arrangement, which easily ad

Note About Images