Modified laser viscometer technique to measure blood viscosity

To eliminate human factor errors in measuring the blood viscosity, laser viscometer was designed and constructed. This viscometer was used to measure blood viscosity of ten human blood samples. Hematological parameters of these samples (RBCs count, mean cell volume (MCV), hematocrit (HCT), mean corpuscle hemoglobin(MCH), mean corpuscle hemoglobin concentration (MCHC), hemoglobin(HGB), red cell distribution width (RDW), and serum cholesterol) were measured and the correlation between the viscosity of whole blood and these parameters were studied. The results obtained show that there is correlation between blood viscosity and each of RBC's count (r = 0.78) , HCT (r = 0.51) and RDW (r = -0.537) while other blood parameters are not correlated.