ABSTRACT
The study sampling included 46 patients operated on the occasion of acute surgical pathology of abdominal organs. The concentration of procalcitonin was analyzed at 2-3 days after operation in simultaneously obtained samples of blood serum and exudation of small intestine. The level of procalcitonin was analyzed using enzyme-linked immunosorbent assay with test-systems with sensitivity 0.01 ng/ml. The concentration of procalcitonin in content of small intestine was lower than in blood serum (p<0.001) and in most samples of enteric exudation (n=33) did not exceed 0.01 ng/ml. The analysis of correlation interdependences established that concentration of procalcitonin in intestinal exudation has no dependencies with its level in blood serum. The admixture of blood as a result of traumatization of mucous membrane under application of naso-jejunal probe is one of main causes of occurrence of procalcitonin in content of intestine.