The signs of internal disease, with a brief consideration of the principal symptoms thereof . utrid urine is due tothe decomposition of mucus and other organic i^ubstances. Poods and=drugs influence the odor. Asparagus, garlic, cabbage, impart a well-recognized odor, and the essential and aromatic oils and turpentinegive character to the odor of the urine. Cystitis gives rise to ammo-niacal urine (Nothnagel says acid). Pyuria lias the odor of pus orof decompo-sition. The odor of acetone is often noticeable in theurine of eclampsia and of diabetes. Reaction. The reaction of fresh normal urine i
The signs of internal disease, with a brief consideration of the principal symptoms thereof . utrid urine is due tothe decomposition of mucus and other organic i^ubstances. Poods and=drugs influence the odor. Asparagus, garlic, cabbage, impart a well-recognized odor, and the essential and aromatic oils and turpentinegive character to the odor of the urine. Cystitis gives rise to ammo-niacal urine (Nothnagel says acid). Pyuria lias the odor of pus orof decompo-sition. The odor of acetone is often noticeable in theurine of eclampsia and of diabetes. Reaction. The reaction of fresh normal urine is acid, due to acidsodium phosphate. The acidity increases for several hours after be-ing voided, due to the so-called acid fermentation. During this perioda whitish deposit, sometimes pink or red, of acid urate of sodium oruric acid is deposited, which disappears on warming. The acidity isleast between meals; early morning urine may be alkaline. Alkalinitycme to ammonia (inflammatory alkalinity) causes red litmus to turnblue when moistened therewith, but to resume its original color when. Pate Yellow. Liqht Yellow- 3Yellow. -f. Reddish Yel lotv. Yellowish Red. Brot^nish. Red. Reddish Brown. Brvtmish Black, PLATE SCALE OP URINE TINTS. EXAMINATION OP THE UKINE 311 dry. The urine is rendered alkaline by the administration of alkalies,as soda or potash, the alkaline carbonates or the salts of the vegetableacids, hence a vegetable diet reduces acidity. Acidity is increased hyadministration of acids, by a meat-diet and by concentration. Specific Gravity. The normal specific gravity of urine variesfrom 1018 to 1022, the average may be placed at 1020, but varies withfood and drink. Meat-diet, active exercise, copious sweating raise itabove this figure. Fluids imbibed lower it. Those forms of Brights
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