title: [Quantitative determination of blood loss by means of 51 Cr-labeled erythrocytes in occult hemorrhages of the gastrointestinal tract].
abstract: By means of 51 Cr-labelled erythrocytes the stools of 17 patients were examined for occult admixtures of blood. Hereby a method well suited for routine work was developed, the manipulations with stool were reduced to a minimum measure. As measuring device an animal total body counter was used. The average excretion of blood in persons without diseases of the gastro-intestinal tract was 0.49+/- 0.38 ml/d. In three patients a haemorrhage could be proved. The quantitative determination of blood losses through the intestine is diagnostically valuable. It is useful particularly in unclear iron deficiency anaemis. A combination of the method with the determination of the survival time of erythrocytes is possible.
mesh_terms: D000328:Adult; D000368:Aged; D000747:Anemia, Hypochromic / Q000097:blood; D001810:Blood Volume; D002860:Chromium Radioisotopes; D004912:Erythrocytes; D005260:Female; D006471:Gastrointestinal Hemorrhage / Q000097:blood / Q000175:diagnosis*; D006801:Humans; D008297:Male; D008875:Middle Aged
chemical_list: D002860:Chromium Radioisotopes
vernacular_title: Quantitative Bestimmung von Blutverlusten mit Cr-markierten Erythrozyten bei okkulten Blutungen in den Magen-Darm-Kanal