Copeptin is a biomarker that can provide information about the activity of the vasopressin system in the body. Vasopressin is a hormone that plays a role in regulating fluid balance and blood pressure.
A Copeptin test may be ordered to help diagnose certain medical conditions such as diabetes insipidus, a disorder characterized by excessive thirst and large amounts of dilute urine, or to assess the severity of heart failure or other cardiovascular disorders.
Additionally, the Copeptin test may be used to help predict the risk of adverse outcomes in patients with chest pain or suspected acute coronary syndrome. It may also be used to monitor treatment response in certain conditions, such as sepsis, where vasopressin plays a role.
Overall, the Copeptin test can provide valuable information to healthcare providers in the diagnosis and management of certain medical conditions.