Diagnostic methods, chemical, bacteriological and microscopical : a text-book for students and practitioners . ears along with calcium phosphateas an amorphous deposit in alkaline urine. Its amount is, however, usuallyless than the latter compound. It is observed in rare cases as large, long, rhombic plates with bevelededges which closely resemble the crystals of triple phosphates. These crystalsare found in cases in which not sufficient ammonia is present to form the truetriple phosphate, and may be considered as transition crystals. (4). Magnesiimi-ammonium Phosphate (Mg(NH4)P04). The appear
Diagnostic methods, chemical, bacteriological and microscopical : a text-book for students and practitioners . ears along with calcium phosphateas an amorphous deposit in alkaline urine. Its amount is, however, usuallyless than the latter compound. It is observed in rare cases as large, long, rhombic plates with bevelededges which closely resemble the crystals of triple phosphates. These crystalsare found in cases in which not sufficient ammonia is present to form the truetriple phosphate, and may be considered as transition crystals. (4). Magnesiimi-ammonium Phosphate (Mg(NH4)P04). The appearance of this substance in the urine is essentially characteristicof ammoniacal urine. It may very rarely be seen in amphoteric urine whenammonium salts are present in large amounts. The crystals belong to therhombic system, appearing most frequently as triangular prisms or cofhn-lid crystals. These may be shortened in the form of squares or one or morecorners may be rounded or beveled. By refracted light a greenish tone isobserved when these crystals are present. A second type of the triple phos- PLATE IX. Ammonium Urate, showing Spherules and Thorn-apple-shaped Crystals.(From Ogdeii, after Peyer.) THE URINE. 335 phate is that of a star-shaped feathery crystal with points not unHke fern-leaves. These crystals are easily soluble in acetic acid and may be identifiedby treating with sodium hydrate and warming when ammonia is evolved.
Size: 1579px × 1582px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1900, booksubjectdiagnosis, bookyear19
