[An evaluation of conductometric methods for determining circulating blood volume].

An analysis of the theory and practical check-up of the methods of determination of the circulating blood volume by the conductometric methods in 86 surgical patients with different phases of compensation of disturbance of water-electrolyte metabolism have shown them to be incompetent. The authors propose a new way to search for and develop a noninvasive impedance measurement method of determination of the extracellular fluid on the basis of Thomasset principle corresponding to possibilities and specific features of national rheographic apparatus.