Posts Tagged Fecal occult blood


ESOPHAGEAL VARICES. Bleeding from upper intestine ,most commonly from an ulcer in stomach and duodenum causes black stool .Black stool is due to action of acid (hydrochloric)on the hemoglobin (present in the red blood cells).That is substantiated by occult blood test of a stool sample.The exact disease of stomach and duodenum can be determined by […]

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