Used in biomedical research to measure levels of coagulation factor II (prothrombin) in rat plasma or serum samples. This ELISA kit enables researchers to study blood coagulation mechanisms, evaluate coagulation disorders, and assess the efficacy of anticoagulant or procoagulant therapies in rat models. Commonly applied in preclinical studies related to thrombosis, hemorrhage, liver function, and drug development. Provides a sensitive and specific quantitative analysis, supporting research in hematology and pharmacology.