The present paper is dedicated to the study of coagulated parametess at white rats, subjected to total hinger. During the total hunger, with the period of 1, 2, 3, 4 days, thewhite rats showed no essantial modifications in the indexes of the coagulation level. The increase of the fi brinogen at the rats subjected to total hunger leads to the rise of
blood coagulation.The total hunger leads to an increase of the protrombin time and of the tromboplastine partial activated, consisting aprotective reaction of the organism.