The determination of the degree of acidity of the urine furnishes a guide as to the alkalinity of the blood and as to certain relations between variously reacting secretions of the digestive glands and the reaction of this excretion. Examination of the urine for ferments may afford an explanation of the fate of these bodies after the performance of their functions. When the stomachtube can be used, a study of the gastric juice will yield information with regard to the disturbances in the digestive chemistry in cases of secretory functional disease of the stomach. If the use of the tube be contraindicated, examination of the urine may furnish correct guidance. It is well known that the acidity of the urine diminishes, and finally disappears, after a meal, in consequence of the withdrawal of acid from the blood for the purposes of gastric digestion. Reasoning by analogy it has been suggested
CONDITION OF URINE IN RELATION TO DISEASE OF THE STOMACH. JAMA. 1900;XXXIV(22):1422. doi:10.1001/jama.1900.02460220052010
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