Used in biomedical research to measure intact parathyroid hormone (i-PTH) levels in rat blood samples. This ELISA kit enables researchers to study calcium and phosphate metabolism, particularly in models of kidney disease, bone disorders, or endocrine dysfunction. It supports quantification of i-PTH concentration in serum or plasma, allowing assessment of parathyroid gland function in experimental animals. Commonly applied in preclinical studies related to chronic kidney disease-mineral and bone disorder (CKD-MBD), hyperparathyroidism, and drug development targeting hormonal regulation.