| 摘要 |
FIELD: medicine. ^ SUBSTANCE: method involves producing two control samples No 1 and No 2 from patient blood serum. Distilled water, blood serum and control samples No 1 and No 2 are placed in acoustic cells of two devices connected to computer for controlling biological fluids at constant temperature of 15 to 40°C. The temperature is lower in the first device than in the second one. Ultrasound is passed through distilled water, blood serum and control samples No 1 and No 2 with its frequency varying from 2 to 40 MHz. Propagation speed is measured in each medium, relative changes of ultrasound speed in blood serum in the first and the second device are measured at corresponding temperatures and in control samples No 1 and No 2 and compared to distilled water. Ultrasound speed frequency coefficient and ultrasound absorption frequency coefficient are determined in blood serum. The obtained data are used for determining concentration of general protein, protein fractions and lipid components in blood serum. ^ EFFECT: high accuracy of the method. ^ 4 cl |
