Bulk OEM Reagents (Reagent 1/ Reagent 2) for automated chemistry analyzers. Cortisol is a multifunctional metabolic pathway regulating steroid hormone that mediates carbohydrate, lipid, and protein metabolism. It helps to maintain blood pressure and glucose levels as well as regulation of the immune system. Cortisol is produced and excreted by the adrenal glands and regulated by signals from the pituitary and hypothalamus glands. When Cortisol regualtion fails to function properly blood cortisol levels can rise or fall; symptoms and conditions of Cushings Syndrome and Addisons Disease, respectively, develop. Cortisol Serum Assay provides a convenient and efficient method to measure cortisol concentration in serum or plasma.