[Diagnostic value of studying creatinine in abdominal exudates].

The levels of creatinine in serum and peritoneal exudate were studied in 77 patients with acute surgical abdominal diseases. It has been found that the exudate concentration of this compound is mainly determined by its level in the serum, which allows the exudate creatinine to be studied for the diagnosis of renal failure. The creatinine concentration in the abdominal exudate in relation to that in the serum varies in urinary tract injury and in the early hours after abdominal sanitation in peritonitis. Exudate creatinine concentration increases (by 2.7-fold or more) require that the urinary tract should be revised to reveal its injury. Creatinine levels in the exudate can be determined not earlier than 8 hours after abdominal lavage. The determination of creatinine concentrations in the peritoneal exudate is a non-invasive and informative tool that enhances the quality of laboratory monitoring in emergency abdominal surgery.