Study Status: Recruiting
Recruit Status: Recruiting
Study Type: Observational
Official Title: Copeptin After Arginine Infusion for the Differential Diagnosis of the Polyuria-Polydipsia Syndrome ''The CARGO-Study''
Brief Summary: the purpose of the study is to investigate whether arginine infusion is a new tool to differentiate patients with diabetes insipidus, primary polydipsia and healthy subjects.