URINARY SEDIMENTS 1578 URINARY SEDIMENTS 



TABLE OF URINARY SEDIMENTS.— Continued. 



Variety. 



Gross Appear- 

 i ances and, 

 i Characters. 



Cystin. 



White or yel- 

 lowish-gray 

 deposit; 

 rare ; acid, 

 neutral, or al- 

 kaline urine. 



Hippuric acid. 



Not distinct- 

 ive; whitish 

 deposit; 

 urine acid. 



Microscopic 

 Features. 



Six-sided plates, 

 often superim- 

 posed- 



Four-sided prisms 

 with two or four 

 beveled edges at 

 the ends. 



Tests. 



Crystals burn 

 on platinum 

 with a bluish- 

 green flame 

 without 

 melting; 

 if heated 

 with caustic 

 potash on sil- 

 ver plate 

 leave a per- 

 manent, dark 

 stain. 



Significance. 



Dissolved i n 

 ammonia, 

 but not in 

 hydrochlor- 

 ic acid. 



Cystinuria may be 

 an hereditary and 

 insignificant con- 

 dition ; or it may 

 indicate the pres- 

 ence of a cystin- 

 stone in the kid- 

 ney. 



Diet of cranberries 

 and other vege- 

 tables ; adminis- 

 tration of benzoic 

 acid ; in diabetes. 



Illustrations. 



(After Tyson, Casselman, Landois, 



Beale, and von Jaksch.) 



\^pA 



Indigo. 



Amorp hous 

 fragments or 

 concretions 

 of blue color ; 

 urine al k a- 

 line or acid. 



Amorphous gran- 

 ules, fine needles, 

 and crystals of 

 a blue color. 



The color is 

 distinctive. 



I n decomposing 

 urine. 



•H* -V **$ !fv 



Leucin and 

 tyrosin. 



Usually a bile- 

 stained de- 

 posit ; often 

 scanty ; rare ; 

 urine acid. 



Leucin: Yellowish, 

 highly refracting 

 spheres, con- 

 taining radiating 

 lines. 



Tyrosin: "Nee- 

 dles" arranged 

 in "sheafs." 



Leucin : Heat- 

 ing with pro- 

 tonitrate of 

 mercury i n 

 solution de- 

 posits metal- 

 lic mercury. 



Tyrosin : Crys- 

 t a 1 s d i s- 

 solved in hot 

 water, and 

 treated with 

 mercuric ni- 

 trate and ni- 

 trate of pot- 

 assium, giv- 

 ing a red so- 

 1 u t i on and 

 red precipi- 

 tate. 



Magnesium 'Not distinctive 



phosphate. 



Mucin. 



Phosphates, 

 Triple — Am- 

 mouio- mag- 

 nesium phos- 

 phate. 



rar e ; urine 

 concentrated, 

 but feebly 

 acid or alka- 

 line. 



Large, strongly 

 refracting plates, 

 in the shape of 

 elongated rhom- 

 bic tablets. 



Soluble in 

 acetic acid, 

 re-prec ipi- 

 tated by car- 

 bonate of so- 

 dium. 



Cloudy tur- 

 bid i t y or a 

 viscid, gelat- 

 inous sed i- 

 ment. 



Epithelium and 

 leukocytes, held 

 in a stringy, 

 transparent 

 mass. 



Heavy, white 

 deposit; 

 urine feebly 

 acid or alka- 

 line. 



Triangular prisms 

 with beveled 

 edges — "coffin 

 lids." Also 

 feathery, star 

 shapes, and other 

 forms. 



Acetic acid 

 causes cloud- 

 i n es s or 

 precipitate. 



Insoluble by 

 heat. Solu- 

 ble in acetic 

 or mineral 

 acids. 



Destruction o f 

 liver; especially 

 acute yellow 

 atrophy, and 

 phosphorus- 

 poisoning. 



No special signif- 

 icance. 



»«S& 



(ienito-u r i nary 

 catarrh, especi- 

 ally cystitis. 



Dvspepsia ; alka- 

 line fermentation 

 of urine; cystitis. 



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