Inappropriate secretion or action of serum antidiuretic hormone (ADH) is termed Diabetes Insipidus (DI), characterized by polyuria (defined as 24 hour urine output in excess of 40 ml/kg) and polydipsia [1]. As opposed to Diabetes Mellitus, where the urine is hypertonic and sweet (mellitus means honey in Greek), DI is defined as having urine that is hypotonic and bland, in the setting of polyuri...
