The aim of the experiment is to compare the blood viscosity levels in different kinds of patients by studying the erythrocyte sedimentation rate. To determine the cardiovascular risk factors linked independently to blood viscosity. Blood viscosity is a measure of resistance of blood to flow, which is described as thickness and stickiness of blood. Increased amount of RBC in blood causes relative increase in blood viscosity. Both RBC deform ability and plasma proteins have a role to play in erythrocyte aggregation. The rate of sedimentation in a period of one hour called ESR and also Biernack test. It is a common haematological non specific indicator of inflammation. To perform the test, non clotting blood is placed in a vertical tube (Westergren) and ESR is measured and reported in units of mm/hr. It reflects the extent of systematic inflammation The reason behind this experiment is to create awareness about the unknown cardiovascular diseases which can be determined by the erythrocyte sedimentation rate.
