FIELD: chemistry.
SUBSTANCE: invention refers to medicine, specifically cardiology, cardiosurgery and functional diagnostics. Two transmitting and two measuring electrodes are applied on specific parts of body. A rheogram and a differential rheogram are recorded. Areas between an isoline and a rheogram curve on the left and on the right from a rheogram point falling on a systole end and a diastole start of the left ventricle. Blood haemoglobin is measured. A stroke volume is measured by a calibration characteristic of the related areas between the isoline and the rheogram curve with the rated volume function from blood haemoglobin.
EFFECT: method provides accuracy 3 times higher within the adaptive range specified a priori by the rated haemoglobin of two patients with the known stroke volume.
2 cl, 1 tbl, 2 dwg
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