![]() ![]() This will lead to decreased oxygen delivery. When the hematocrit rises to 60 or 70, which it often does in polycythemia, the blood viscosity can become as great as 10 times that of water, and its flow through blood vessels is greatly retarded because of increased resistance to flow. Disclaimer: Popularity is based on total prescriptions for the brand and generic versions of each drug, regardless of the condition being treated. The viscosity of blood after this shear rate is reached is about five times as great as the viscosity of water. This medicine helps to decrease the pain, discomfort, or cramps you can get from having poor circulation in your legs. Until this point is reached the term viscosity cannot be applied to blood. Pressure-flow relationships were obtained in a range of pseudo-shear rates (mu) between 0.15 and 250 s-1. The fluid must reach a shear rate of about 100 to be assumed Newtonian. Apparent viscosity was determined in vertical glass tubes (ID 30.2-132.3 microns) with suspensions of human red cells in A) serum, B) saline containing 0.5 g/100 ml albumin, C) plasma, and D) plasma containing Dextran 250 at a feed hematocrit of 0.45. However, plasma can be considered a Newtonian fluid, but blood cannot due to the red blood cells which add non-idealties to the fluid. The viscosity of blood thus depends on the viscosity of the plasma, in combination with the hematocrit. Physicians also may prescribe medicine for this conditions, including stroke, impotence, male infertility, Raynaud's disease, and nerve and circulation problems caused by diabetes.īlood is a liquid that consists of plasma and particles, such as the red blood cells. Viscous Blood can cause painful leg cramps or leg pain caused by poor circulation, a condition called intermittent claudication. Freebase (5.00 / 1 vote) Rate this definition:īlood viscosity is a measure of the resistance of blood to flow, which is being deformed by either shear or extensional strain. ![]()
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