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September 6, 1924

SPECTROSCOPIC AND CHEMICAL DEMONSTRATIONS OF OCCULT BLOOD IN THE FECES

Author Affiliations

Professor of Gastro-Enterology and Dietetics, Detroit College of Medicine and Surgery DETROIT

JAMA. 1924;83(10):741-743. doi:10.1001/jama.1924.02660100015005
Abstract

The finding of occult blood in the feces, when hemorrhage from the nose, mouth, throat, esophagus and hemorrhoids can be eliminated, is of the highest importance in the diagnosis of ulceration of the digestive tract. In conjunction with certain clinical symptoms, occult blood may be looked on as pathognomonic of ulcerating lesions of the stomach or the intestine. Moreover, in cases of gastric ulcer, occult blood in the feces is a most important objective symptom, for it not only clinches the diagnosis, but also indicates whether or not the ulcer is healing. During the treatment, a negative test for occult blood implies that the therapy is effective. The finding of occult blood is also the earliest and surest objective symptom in cases of carcinoma of the digestive tract. Bleeding from a carcinoma can be differentiated from bleeding from an ordinary ulcer by the fact that, in ulcer, the bleeding may

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