Used in research settings to quantify Protein C levels in rat biological samples such as plasma or serum. This assay is particularly applied in studies related to coagulation, thrombosis, and endothelial function. It enables researchers to assess changes in Protein C concentration under experimental conditions, including inflammation, sepsis, or anticoagulant therapy. The kit provides a reliable and sensitive method for monitoring Protein C activity indirectly through concentration measurements, supporting vascular and hemostasis research in preclinical animal models.