[Express method of determining blood in the abdominal cavity in closed abdominal injuries]. / Ekspress-metod opredeleniia krovi v briushnoi polosti pri zakrytoi travme zhivota.

The article describes an express-method of determining intraabdominal bleeding with the help of a benzidine test based on the ability of the hemine group of hemoglobin to catalyze the reaction of benzidine oxidation with hydrogen peroxide.