. Urinary analysis and diagnosis by microscopical and chemical examination. rdot-like irregular formations, the so-called amorphous shapes. A numberof small squares may combine together, giving concretions sometimes oflarge size, which are especially abundant under the microscope when cal-cium-oxalate calculi are present. They are often massed together uponmucus-threads or foreign substances. Besides these, there are rarerforms, consisting of more or less concentrically striated, highly refractivediscs or barrel shapes, and of variously sized dumb-bells. The latter mayassume large proportions,
. Urinary analysis and diagnosis by microscopical and chemical examination. rdot-like irregular formations, the so-called amorphous shapes. A numberof small squares may combine together, giving concretions sometimes oflarge size, which are especially abundant under the microscope when cal-cium-oxalate calculi are present. They are often massed together uponmucus-threads or foreign substances. Besides these, there are rarerforms, consisting of more or less concentrically striated, highly refractivediscs or barrel shapes, and of variously sized dumb-bells. The latter mayassume large proportions, and are easily differentiated from the dumb-bell forms of uric acid or ammonium urate, by their being colorless. The common forms of calcium-oxalate crystals can hardly be mistakenfor anything else, if it is borne in mind that they are always without colorand of a moderate refraction. The small discs may be mistaken for redblood globules, but are of a considerably higher refraction than the usually present in acid urine only, they may be found in neutral. Fio. 26.—Granules of Sodium Urate Changing to Globules and Dumb-bells(X 500). or slightly alkaline urine in small amount. When the reaction of an orig-inally acid urine has become alkaline, they gradually disappear, whiletriple phosphates commence to develop. Should there be any doubt asto their character, they will be found to be insoluble in acetic acid, butsoluble in hvdrochloric acid. 78 UEINABY ANALYSIS AND DIAGNOSIS. When calcium oxalate is present in the urine in large amount, with ahigh specific gravity, , , or even , it often denotes theexistence of oxaluria. This affection, although very common, is fre-quently overlooked. It gives the symptoms of neurasthenia, dyspepsia,
Size: 1421px × 1759px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjecturine, bookyear1906
