Abstract: A process of treating trauma induced factor V consumptive coagulopathy is presented whereby a subject is administered a preparation of isolated factor V or a variant thereof. Administration of factor V surprisingly improves clot times and reduces the severity and propensity of bleeding events.

Abstract: The invention provides assays for detecting and quantitating tissue factor and factor VIIa in simple and complex biological systems. The assays are performed by detecting and/or measuring the tissue factor cofactor activity and factor VIIa enzymatic activity using aminonapthalene-based fluorogenic substrates.

Abstract: A method for manufacturing a tissue factor-based prothrombin-time reagent includes combining predetermined quantities of tissue factor (TF), phospholipid and detergent-containing buffer to create a TF/phospholipid mixture. In this combining step, the quantity of TF is predetermined based upon its measured TF activity. Next, the detergent is removed from the TF/phospholipid mixture to produce an essentially detergent-free TF/phospholipid mixture that is useful as a tissue factor-based PT reagent. The method can include the use of hydrophobic resin that has been prescreened based on phospholipid recovery to accomplish the removal of the detergent.

Abstract: A method for manufacturing a tissue factor-based prothrombin-time reagent includes combining predetermined quantities of tissue factor (TF), phospholipid and detergent-containing buffer to create a TF/phospholipid mixture. In this combining step, the quantity of TF is predetermined based upon its measured TF activity. Next, the detergent is removed from the TF/phospholipid mixture to produce an essentially detergent-free TF/phospholipid mixture that is useful as a tissue factor-based PT reagent. The method can include the use of hydrophobic resin that has been prescreened based on phospholipid recovery to accomplish the removal of the detergent.