[Experimental demonstration of occult blood in the stool after sole abdominal irradiation or chemotherapy or a combination of both (author's transl)].

Using Heglostix-Ames test strips, it was possible with normally fed animals, to furnish evidence of occult blood in spontaneous droppings of mice. The mice were exposed either to partial irradiation encompassing the abdomen and using different exit doses between 100 R and 1100 R, or were injected intramuscularly with doses between 120 and 900 mg/kg Endoxan or, instead, 110 and 840 mg/kg Proreside. The moment of the beginning and also the duration of positive reactions could be proved to depend on the dose.