[Use of light scattering to register heat damage to erythrocytes]

A method for the measurement of red cell strength is offered. It is based on red cell destruction under exposure to constant high temperature and recording of the suspension-induced changes in light scattering over time. The method enables the measurement of red cell strength at varying osmotic pressures, in macromolecular solutions, in blood serum as well as the assessment of red cell density, etc.