Used in biomedical research to measure atrial natriuretic peptide (ANP) levels in rat samples, this ELISA kit helps investigate cardiac function, fluid balance, and hormonal regulation. It is commonly applied in studies related to hypertension, heart failure, and kidney disease in preclinical models. The assay enables quantitative detection of ANP in plasma, serum, or tissue extracts, supporting research in endocrinology and cardiovascular physiology.