The Diagnostica Stago Viscosity Based Detection System greatly reduces the interference from lipemia, icterus or hemolysis - maximizing accuracy and precision. Viscosity is defined as the resistance a material has to a change in its form. Therefore, when used as a mechanism for clot detection, the natural thickening (clotting) of a reaction is monitored as a change in form takes place. The final result is an accurate and reliable measurement for the hemostasis laboratory.