Yes, this is a viable option for paediatric or anaemic patients. We recommend patients should weigh more than 20 kg to draw 120 ml blood. The Vivostat System operates in exactly the same way with plasma.There are just a few important things to remember: It must be fresh frozen plasma. You cannot use products such as SAG M or other erythrocyte products. They will not produce any fibrin as the plasma has been removed.