Abstract: A method for determining the state of the cardiovascular system by measuring a quantitative blood supply parameter for each body part being investigated, which corresponds to a sum total of the absolute areas of all positive and negative half-waves of the first time derivative of pulsed fluctuations of pressure in the blood vessel of the body part being investigated, calculating the sum of these parameters and ratios between them for selected combinations of body parts and comparing these quantitative parameters, as well as their sums and ratios with statistical average ranges established for respective blood supply parameters and their sums and ratios for healthy organisms and organisms with known pathologies, the result of the comparison being indicative of the state of the cardiovascular system of the organism being investigated.