Effect of Blood Chemistry on the Rheological Properties of the Fluid

摘要

A four variable constitutive equation was developed utilizing the method first presented by Schneck and Walburn. Spearman Rank Correlation coefficients were calculated on whole blood samples within a narrow range of hematocrit to investigate further the effect of the various plasma constituents on whole blood viscosity. Viscosity measurements were made on 100 anticoagulated (EDTA) blood samples of known hematocrit and chemical composition. The constitutive equation was developed using a power law functional form similar to that employed by Schneck and Walburn. This equation contains two parameters, the consistency index and the non-Newtonian index. A computerized multiple regression technique with apparent viscosity as the dependent variable was used to determine the particular form of these parameters.