. Urinary analysis and diagnosis by microscopical and chemical examination. ning cystin may have a peculiar odor, a greenish-yellow color, anddevelops the odor of sulphureted hydrogen upon standing; a grayish-white precipitate may form. When cystin is present, certain products ofintestinal putrefaction, the diamins, especially cadaverin and putrescin,are almost constantly found. The neutral sulphur of the urine is greatlyincreased in amount in these cases of cystinuria. Cystin is soluble in am-monia and can be precipitated by acetic acid. Its microscopical appear-ance is quite characteristic.
. Urinary analysis and diagnosis by microscopical and chemical examination. ning cystin may have a peculiar odor, a greenish-yellow color, anddevelops the odor of sulphureted hydrogen upon standing; a grayish-white precipitate may form. When cystin is present, certain products ofintestinal putrefaction, the diamins, especially cadaverin and putrescin,are almost constantly found. The neutral sulphur of the urine is greatlyincreased in amount in these cases of cystinuria. Cystin is soluble in am-monia and can be precipitated by acetic acid. Its microscopical appear-ance is quite characteristic. PART SECOND. MICROSCOPICAL EXAMINATION. PART SECOND. MICROSCOPICAL EXAMINATION. CHAPTER VIII. GENERAL CONSIDERATIONS. Microscopical examination of urine is in many cases of greater diag-nostic importance than chemical examination, and should in every in-stance form a part of urinary analysis. Whenever possible, urine, beforeit is to be examined under the microscope, should be set aside in a well-stoppered bottle or conical vessel, preferably in a cool place, for at least.
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