A New Method of Express Control of Early-Stage Kidney Damage

The necessity of determining kidney damage at an early stage using fast and reliable express methods was substantiated. A method based on refractometric measurements of refractive index at three wavelengths with grading of refractive indices to the values of three basic parameters (osmolarity, amount of solids, density) was proposed for express analysis of kidney damage control. Additionally, the sizes of protein compounds were investigated and their sizes were also graded to refractive indices. The advantages of using the refractometer design at three wavelengths over other methods were noted. The peculiarities of measuring the refractive index of biological liquids on the example of urine are established. The results of the study of various samples and their analysis are presented. The comparison of the obtained results with the results of measurements in clinical diagnostics is carried out.